diff options
Diffstat (limited to '')
-rw-r--r-- | docs/sqlglot/schema.html | 1624 |
1 files changed, 1624 insertions, 0 deletions
diff --git a/docs/sqlglot/schema.html b/docs/sqlglot/schema.html new file mode 100644 index 0000000..9edba6c --- /dev/null +++ b/docs/sqlglot/schema.html @@ -0,0 +1,1624 @@ +<!doctype html> +<html lang="en"> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="generator" content="pdoc 12.3.1"/> + <title>sqlglot.schema API documentation</title> + + <style>/*! * Bootstrap Reboot v5.0.0 (https://getbootstrap.com/) * Copyright 2011-2021 The Bootstrap Authors * Copyright 2011-2021 Twitter, Inc. * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md) */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus:not(:focus-visible){outline:0}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}select:disabled{opacity:1}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}</style> + <style>/*! syntax-highlighting.css */pre{line-height:125%;}span.linenos{color:inherit; background-color:transparent; padding-left:5px; padding-right:20px;}.pdoc-code .hll{background-color:#ffffcc}.pdoc-code{background:#f8f8f8;}.pdoc-code .c{color:#3D7B7B; font-style:italic}.pdoc-code .err{border:1px solid #FF0000}.pdoc-code .k{color:#008000; font-weight:bold}.pdoc-code .o{color:#666666}.pdoc-code .ch{color:#3D7B7B; font-style:italic}.pdoc-code .cm{color:#3D7B7B; font-style:italic}.pdoc-code .cp{color:#9C6500}.pdoc-code .cpf{color:#3D7B7B; font-style:italic}.pdoc-code .c1{color:#3D7B7B; font-style:italic}.pdoc-code .cs{color:#3D7B7B; font-style:italic}.pdoc-code .gd{color:#A00000}.pdoc-code .ge{font-style:italic}.pdoc-code .gr{color:#E40000}.pdoc-code .gh{color:#000080; font-weight:bold}.pdoc-code .gi{color:#008400}.pdoc-code .go{color:#717171}.pdoc-code .gp{color:#000080; font-weight:bold}.pdoc-code .gs{font-weight:bold}.pdoc-code .gu{color:#800080; font-weight:bold}.pdoc-code .gt{color:#0044DD}.pdoc-code .kc{color:#008000; font-weight:bold}.pdoc-code .kd{color:#008000; font-weight:bold}.pdoc-code .kn{color:#008000; font-weight:bold}.pdoc-code .kp{color:#008000}.pdoc-code .kr{color:#008000; font-weight:bold}.pdoc-code .kt{color:#B00040}.pdoc-code .m{color:#666666}.pdoc-code .s{color:#BA2121}.pdoc-code .na{color:#687822}.pdoc-code .nb{color:#008000}.pdoc-code .nc{color:#0000FF; font-weight:bold}.pdoc-code .no{color:#880000}.pdoc-code .nd{color:#AA22FF}.pdoc-code .ni{color:#717171; font-weight:bold}.pdoc-code .ne{color:#CB3F38; font-weight:bold}.pdoc-code .nf{color:#0000FF}.pdoc-code .nl{color:#767600}.pdoc-code .nn{color:#0000FF; font-weight:bold}.pdoc-code .nt{color:#008000; font-weight:bold}.pdoc-code .nv{color:#19177C}.pdoc-code .ow{color:#AA22FF; font-weight:bold}.pdoc-code .w{color:#bbbbbb}.pdoc-code .mb{color:#666666}.pdoc-code .mf{color:#666666}.pdoc-code .mh{color:#666666}.pdoc-code .mi{color:#666666}.pdoc-code .mo{color:#666666}.pdoc-code .sa{color:#BA2121}.pdoc-code .sb{color:#BA2121}.pdoc-code .sc{color:#BA2121}.pdoc-code .dl{color:#BA2121}.pdoc-code .sd{color:#BA2121; font-style:italic}.pdoc-code .s2{color:#BA2121}.pdoc-code .se{color:#AA5D1F; font-weight:bold}.pdoc-code .sh{color:#BA2121}.pdoc-code .si{color:#A45A77; font-weight:bold}.pdoc-code .sx{color:#008000}.pdoc-code .sr{color:#A45A77}.pdoc-code .s1{color:#BA2121}.pdoc-code .ss{color:#19177C}.pdoc-code .bp{color:#008000}.pdoc-code .fm{color:#0000FF}.pdoc-code .vc{color:#19177C}.pdoc-code .vg{color:#19177C}.pdoc-code .vi{color:#19177C}.pdoc-code .vm{color:#19177C}.pdoc-code .il{color:#666666}</style> + <style>/*! theme.css */:root{--pdoc-background:#fff;}.pdoc{--text:#212529;--muted:#6c757d;--link:#3660a5;--link-hover:#1659c5;--code:#f8f8f8;--active:#fff598;--accent:#eee;--accent2:#c1c1c1;--nav-hover:rgba(255, 255, 255, 0.5);--name:#0066BB;--def:#008800;--annotation:#007020;}</style> + <style>/*! layout.css */html, body{width:100%;height:100%;}html, main{scroll-behavior:smooth;}body{background-color:var(--pdoc-background);}@media (max-width:769px){#navtoggle{cursor:pointer;position:absolute;width:50px;height:40px;top:1rem;right:1rem;border-color:var(--text);color:var(--text);display:flex;opacity:0.8;}#navtoggle:hover{opacity:1;}#togglestate + div{display:none;}#togglestate:checked + div{display:inherit;}main, header{padding:2rem 3vw;}header + main{margin-top:-3rem;}.git-button{display:none !important;}nav input[type="search"]{max-width:77%;}nav input[type="search"]:first-child{margin-top:-6px;}nav input[type="search"]:valid ~ *{display:none !important;}}@media (min-width:770px){:root{--sidebar-width:clamp(12.5rem, 28vw, 22rem);}nav{position:fixed;overflow:auto;height:100vh;width:var(--sidebar-width);}main, header{padding:3rem 2rem 3rem calc(var(--sidebar-width) + 3rem);width:calc(54rem + var(--sidebar-width));max-width:100%;}header + main{margin-top:-4rem;}#navtoggle{display:none;}}#togglestate{position:absolute;height:0;opacity:0;}nav.pdoc{--pad:clamp(0.5rem, 2vw, 1.75rem);--indent:1.5rem;background-color:var(--accent);border-right:1px solid var(--accent2);box-shadow:0 0 20px rgba(50, 50, 50, .2) inset;padding:0 0 0 var(--pad);overflow-wrap:anywhere;scrollbar-width:thin; scrollbar-color:var(--accent2) transparent }nav.pdoc::-webkit-scrollbar{width:.4rem; }nav.pdoc::-webkit-scrollbar-thumb{background-color:var(--accent2); }nav.pdoc > div{padding:var(--pad) 0;}nav.pdoc .module-list-button{display:inline-flex;align-items:center;color:var(--text);border-color:var(--muted);margin-bottom:1rem;}nav.pdoc .module-list-button:hover{border-color:var(--text);}nav.pdoc input[type=search]{display:block;outline-offset:0;width:calc(100% - var(--pad));}nav.pdoc .logo{max-width:calc(100% - var(--pad));max-height:35vh;display:block;margin:0 auto 1rem;transform:translate(calc(-.5 * var(--pad)), 0);}nav.pdoc ul{list-style:none;padding-left:0;}nav.pdoc > div > ul{margin-left:calc(0px - var(--pad));}nav.pdoc li a{padding:.2rem 0 .2rem calc(var(--pad) + var(--indent));}nav.pdoc > div > ul > li > a{padding-left:var(--pad);}nav.pdoc li{transition:all 100ms;}nav.pdoc li:hover{background-color:var(--nav-hover);}nav.pdoc a, nav.pdoc a:hover{color:var(--text);}nav.pdoc a{display:block;}nav.pdoc > h2:first-of-type{margin-top:1.5rem;}nav.pdoc .class:before{content:"class ";color:var(--muted);}nav.pdoc .function:after{content:"()";color:var(--muted);}nav.pdoc footer:before{content:"";display:block;width:calc(100% - var(--pad));border-top:solid var(--accent2) 1px;margin-top:1.5rem;padding-top:.5rem;}nav.pdoc footer{font-size:small;}</style> + <style>/*! content.css */.pdoc{color:var(--text);box-sizing:border-box;line-height:1.5;background:none;}.pdoc .pdoc-button{display:inline-block;border:solid black 1px;border-radius:2px;font-size:.75rem;padding:calc(0.5em - 1px) 1em;transition:100ms all;}.pdoc .pdoc-alert{padding:1rem 1rem 1rem calc(1.5rem + 24px);border:1px solid transparent;border-radius:.25rem;background-repeat:no-repeat;background-position:1rem center;margin-bottom:1rem;}.pdoc .pdoc-alert > *:last-child{margin-bottom:0;}.pdoc .pdoc-alert-note {color:#084298;background-color:#cfe2ff;border-color:#b6d4fe;background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2224%22%20height%3D%2224%22%20fill%3D%22%23084298%22%20viewBox%3D%220%200%2016%2016%22%3E%3Cpath%20d%3D%22M8%2016A8%208%200%201%200%208%200a8%208%200%200%200%200%2016zm.93-9.412-1%204.705c-.07.34.029.533.304.533.194%200%20.487-.07.686-.246l-.088.416c-.287.346-.92.598-1.465.598-.703%200-1.002-.422-.808-1.319l.738-3.468c.064-.293.006-.399-.287-.47l-.451-.081.082-.381%202.29-.287zM8%205.5a1%201%200%201%201%200-2%201%201%200%200%201%200%202z%22/%3E%3C/svg%3E");}.pdoc .pdoc-alert-warning{color:#664d03;background-color:#fff3cd;border-color:#ffecb5;background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2224%22%20height%3D%2224%22%20fill%3D%22%23664d03%22%20viewBox%3D%220%200%2016%2016%22%3E%3Cpath%20d%3D%22M8.982%201.566a1.13%201.13%200%200%200-1.96%200L.165%2013.233c-.457.778.091%201.767.98%201.767h13.713c.889%200%201.438-.99.98-1.767L8.982%201.566zM8%205c.535%200%20.954.462.9.995l-.35%203.507a.552.552%200%200%201-1.1%200L7.1%205.995A.905.905%200%200%201%208%205zm.002%206a1%201%200%201%201%200%202%201%201%200%200%201%200-2z%22/%3E%3C/svg%3E");}.pdoc .pdoc-alert-danger{color:#842029;background-color:#f8d7da;border-color:#f5c2c7;background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20width%3D%2224%22%20height%3D%2224%22%20fill%3D%22%23842029%22%20viewBox%3D%220%200%2016%2016%22%3E%3Cpath%20d%3D%22M5.52.359A.5.5%200%200%201%206%200h4a.5.5%200%200%201%20.474.658L8.694%206H12.5a.5.5%200%200%201%20.395.807l-7%209a.5.5%200%200%201-.873-.454L6.823%209.5H3.5a.5.5%200%200%201-.48-.641l2.5-8.5z%22/%3E%3C/svg%3E");}.pdoc .visually-hidden{position:absolute !important;width:1px !important;height:1px !important;padding:0 !important;margin:-1px !important;overflow:hidden !important;clip:rect(0, 0, 0, 0) !important;white-space:nowrap !important;border:0 !important;}.pdoc h1, .pdoc h2, .pdoc h3{font-weight:300;margin:.3em 0;padding:.2em 0;}.pdoc > section:not(.module-info) h1{font-size:1.5rem;font-weight:500;}.pdoc > section:not(.module-info) h2{font-size:1.4rem;font-weight:500;}.pdoc > section:not(.module-info) h3{font-size:1.3rem;font-weight:500;}.pdoc > section:not(.module-info) h4{font-size:1.2rem;}.pdoc > section:not(.module-info) h5{font-size:1.1rem;}.pdoc a{text-decoration:none;color:var(--link);}.pdoc a:hover{color:var(--link-hover);}.pdoc blockquote{margin-left:2rem;}.pdoc pre{border-top:1px solid var(--accent2);border-bottom:1px solid var(--accent2);margin-top:0;margin-bottom:1em;padding:.5rem 0 .5rem .5rem;overflow-x:auto;background-color:var(--code);}.pdoc code{color:var(--text);padding:.2em .4em;margin:0;font-size:85%;background-color:var(--code);border-radius:6px;}.pdoc a > code{color:inherit;}.pdoc pre > code{display:inline-block;font-size:inherit;background:none;border:none;padding:0;}.pdoc > section:not(.module-info){margin-bottom:1.5rem;}.pdoc .modulename{margin-top:0;font-weight:bold;}.pdoc .modulename a{color:var(--link);transition:100ms all;}.pdoc .git-button{float:right;border:solid var(--link) 1px;}.pdoc .git-button:hover{background-color:var(--link);color:var(--pdoc-background);}.view-source-toggle-state,.view-source-toggle-state ~ .pdoc-code{display:none;}.view-source-toggle-state:checked ~ .pdoc-code{display:block;}.view-source-button{display:inline-block;float:right;font-size:.75rem;line-height:1.5rem;color:var(--muted);padding:0 .4rem 0 1.3rem;cursor:pointer;text-indent:-2px;}.view-source-button > span{visibility:hidden;}.module-info .view-source-button{float:none;display:flex;justify-content:flex-end;margin:-1.2rem .4rem -.2rem 0;}.view-source-button::before{position:absolute;content:"View Source";display:list-item;list-style-type:disclosure-closed;}.view-source-toggle-state:checked ~ .attr .view-source-button::before,.view-source-toggle-state:checked ~ .view-source-button::before{list-style-type:disclosure-open;}.pdoc .docstring{margin-bottom:1.5rem;}.pdoc section:not(.module-info) .docstring{margin-left:clamp(0rem, 5vw - 2rem, 1rem);}.pdoc .docstring .pdoc-code{margin-left:1em;margin-right:1em;}.pdoc h1:target,.pdoc h2:target,.pdoc h3:target,.pdoc h4:target,.pdoc h5:target,.pdoc h6:target,.pdoc .pdoc-code > pre > span:target{background-color:var(--active);box-shadow:-1rem 0 0 0 var(--active);}.pdoc .pdoc-code > pre > span:target{display:block;}.pdoc div:target > .attr,.pdoc section:target > .attr,.pdoc dd:target > a{background-color:var(--active);}.pdoc *{scroll-margin:2rem;}.pdoc .pdoc-code .linenos{user-select:none;}.pdoc .attr:hover{filter:contrast(0.95);}.pdoc section, .pdoc .classattr{position:relative;}.pdoc .headerlink{--width:clamp(1rem, 3vw, 2rem);position:absolute;top:0;left:calc(0rem - var(--width));transition:all 100ms ease-in-out;opacity:0;}.pdoc .headerlink::before{content:"#";display:block;text-align:center;width:var(--width);height:2.3rem;line-height:2.3rem;font-size:1.5rem;}.pdoc .attr:hover ~ .headerlink,.pdoc *:target > .headerlink,.pdoc .headerlink:hover{opacity:1;}.pdoc .attr{display:block;margin:.5rem 0 .5rem;padding:.4rem .4rem .4rem 1rem;background-color:var(--accent);overflow-x:auto;}.pdoc .classattr{margin-left:2rem;}.pdoc .name{color:var(--name);font-weight:bold;}.pdoc .def{color:var(--def);font-weight:bold;}.pdoc .signature{background-color:transparent;}.pdoc .param, .pdoc .return-annotation{white-space:pre;}.pdoc .signature.multiline .param{display:block;}.pdoc .signature.condensed .param{display:inline-block;}.pdoc .annotation{color:var(--annotation);}.pdoc .inherited{margin-left:2rem;}.pdoc .inherited dt{font-weight:700;}.pdoc .inherited dt, .pdoc .inherited dd{display:inline;margin-left:0;margin-bottom:.5rem;}.pdoc .inherited dd:not(:last-child):after{content:", ";}.pdoc .inherited .class:before{content:"class ";}.pdoc .inherited .function a:after{content:"()";}.pdoc .search-result .docstring{overflow:auto;max-height:25vh;}.pdoc .search-result.focused > .attr{background-color:var(--active);}.pdoc .attribution{margin-top:2rem;display:block;opacity:0.5;transition:all 200ms;filter:grayscale(100%);}.pdoc .attribution:hover{opacity:1;filter:grayscale(0%);}.pdoc .attribution img{margin-left:5px;height:35px;vertical-align:middle;width:70px;transition:all 200ms;}.pdoc table{display:block;width:max-content;max-width:100%;overflow:auto;margin-bottom:1rem;}.pdoc table th{font-weight:600;}.pdoc table th, .pdoc table td{padding:6px 13px;border:1px solid var(--accent2);}</style> + <style>/*! custom.css */</style></head> +<body> + <nav class="pdoc"> + <label id="navtoggle" for="togglestate" class="pdoc-button"><svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'><path stroke-linecap='round' stroke="currentColor" stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg></label> + <input id="togglestate" type="checkbox" aria-hidden="true" tabindex="-1"> + <div> <a class="pdoc-button module-list-button" href="../sqlglot.html"> +<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-box-arrow-in-left" viewBox="0 0 16 16"> + <path fill-rule="evenodd" d="M10 3.5a.5.5 0 0 0-.5-.5h-8a.5.5 0 0 0-.5.5v9a.5.5 0 0 0 .5.5h8a.5.5 0 0 0 .5-.5v-2a.5.5 0 0 1 1 0v2A1.5 1.5 0 0 1 9.5 14h-8A1.5 1.5 0 0 1 0 12.5v-9A1.5 1.5 0 0 1 1.5 2h8A1.5 1.5 0 0 1 11 3.5v2a.5.5 0 0 1-1 0v-2z"/> + <path fill-rule="evenodd" d="M4.146 8.354a.5.5 0 0 1 0-.708l3-3a.5.5 0 1 1 .708.708L5.707 7.5H14.5a.5.5 0 0 1 0 1H5.707l2.147 2.146a.5.5 0 0 1-.708.708l-3-3z"/> +</svg> sqlglot</a> + + + <input type="search" placeholder="Search..." role="searchbox" aria-label="search" + pattern=".+" required> + + + + <h2>API Documentation</h2> + <ul class="memberlist"> + <li> + <a class="class" href="#Schema">Schema</a> + <ul class="memberlist"> + <li> + <a class="function" href="#Schema.add_table">add_table</a> + </li> + <li> + <a class="function" href="#Schema.column_names">column_names</a> + </li> + <li> + <a class="function" href="#Schema.get_column_type">get_column_type</a> + </li> + <li> + <a class="variable" href="#Schema.supported_table_args">supported_table_args</a> + </li> + </ul> + + </li> + <li> + <a class="class" href="#AbstractMappingSchema">AbstractMappingSchema</a> + <ul class="memberlist"> + <li> + <a class="function" href="#AbstractMappingSchema.__init__">AbstractMappingSchema</a> + </li> + <li> + <a class="function" href="#AbstractMappingSchema.table_parts">table_parts</a> + </li> + <li> + <a class="function" href="#AbstractMappingSchema.find">find</a> + </li> + </ul> + + </li> + <li> + <a class="class" href="#MappingSchema">MappingSchema</a> + <ul class="memberlist"> + <li> + <a class="function" href="#MappingSchema.__init__">MappingSchema</a> + </li> + <li> + <a class="function" href="#MappingSchema.from_mapping_schema">from_mapping_schema</a> + </li> + <li> + <a class="function" href="#MappingSchema.copy">copy</a> + </li> + <li> + <a class="function" href="#MappingSchema.add_table">add_table</a> + </li> + <li> + <a class="function" href="#MappingSchema.column_names">column_names</a> + </li> + <li> + <a class="function" href="#MappingSchema.get_column_type">get_column_type</a> + </li> + </ul> + + </li> + <li> + <a class="function" href="#ensure_schema">ensure_schema</a> + </li> + <li> + <a class="function" href="#ensure_column_mapping">ensure_column_mapping</a> + </li> + <li> + <a class="function" href="#flatten_schema">flatten_schema</a> + </li> + </ul> + + + <footer>Copyright (c) 2023 Toby Mao</footer> + + <a class="attribution" title="pdoc: Python API documentation generator" href="https://pdoc.dev" target="_blank"> + built with <span class="visually-hidden">pdoc</span><img + alt="pdoc logo" + src="data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A//www.w3.org/2000/svg%22%20role%3D%22img%22%20aria-label%3D%22pdoc%20logo%22%20width%3D%22300%22%20height%3D%22150%22%20viewBox%3D%22-1%200%2060%2030%22%3E%3Ctitle%3Epdoc%3C/title%3E%3Cpath%20d%3D%22M29.621%2021.293c-.011-.273-.214-.475-.511-.481a.5.5%200%200%200-.489.503l-.044%201.393c-.097.551-.695%201.215-1.566%201.704-.577.428-1.306.486-2.193.182-1.426-.617-2.467-1.654-3.304-2.487l-.173-.172a3.43%203.43%200%200%200-.365-.306.49.49%200%200%200-.286-.196c-1.718-1.06-4.931-1.47-7.353.191l-.219.15c-1.707%201.187-3.413%202.131-4.328%201.03-.02-.027-.49-.685-.141-1.763.233-.721.546-2.408.772-4.076.042-.09.067-.187.046-.288.166-1.347.277-2.625.241-3.351%201.378-1.008%202.271-2.586%202.271-4.362%200-.976-.272-1.935-.788-2.774-.057-.094-.122-.18-.184-.268.033-.167.052-.339.052-.516%200-1.477-1.202-2.679-2.679-2.679-.791%200-1.496.352-1.987.9a6.3%206.3%200%200%200-1.001.029c-.492-.564-1.207-.929-2.012-.929-1.477%200-2.679%201.202-2.679%202.679A2.65%202.65%200%200%200%20.97%206.554c-.383.747-.595%201.572-.595%202.41%200%202.311%201.507%204.29%203.635%205.107-.037.699-.147%202.27-.423%203.294l-.137.461c-.622%202.042-2.515%208.257%201.727%2010.643%201.614.908%203.06%201.248%204.317%201.248%202.665%200%204.492-1.524%205.322-2.401%201.476-1.559%202.886-1.854%206.491.82%201.877%201.393%203.514%201.753%204.861%201.068%202.223-1.713%202.811-3.867%203.399-6.374.077-.846.056-1.469.054-1.537zm-4.835%204.313c-.054.305-.156.586-.242.629-.034-.007-.131-.022-.307-.157-.145-.111-.314-.478-.456-.908.221.121.432.25.675.355.115.039.219.051.33.081zm-2.251-1.238c-.05.33-.158.648-.252.694-.022.001-.125-.018-.307-.157-.217-.166-.488-.906-.639-1.573.358.344.754.693%201.198%201.036zm-3.887-2.337c-.006-.116-.018-.231-.041-.342.635.145%201.189.368%201.599.625.097.231.166.481.174.642-.03.049-.055.101-.067.158-.046.013-.128.026-.298.004-.278-.037-.901-.57-1.367-1.087zm-1.127-.497c.116.306.176.625.12.71-.019.014-.117.045-.345.016-.206-.027-.604-.332-.986-.695.41-.051.816-.056%201.211-.031zm-4.535%201.535c.209.22.379.47.358.598-.006.041-.088.138-.351.234-.144.055-.539-.063-.979-.259a11.66%2011.66%200%200%200%20.972-.573zm.983-.664c.359-.237.738-.418%201.126-.554.25.237.479.548.457.694-.006.042-.087.138-.351.235-.174.064-.694-.105-1.232-.375zm-3.381%201.794c-.022.145-.061.29-.149.401-.133.166-.358.248-.69.251h-.002c-.133%200-.306-.26-.45-.621.417.091.854.07%201.291-.031zm-2.066-8.077a4.78%204.78%200%200%201-.775-.584c.172-.115.505-.254.88-.378l-.105.962zm-.331%202.302a10.32%2010.32%200%200%201-.828-.502c.202-.143.576-.328.984-.49l-.156.992zm-.45%202.157l-.701-.403c.214-.115.536-.249.891-.376a11.57%2011.57%200%200%201-.19.779zm-.181%201.716c.064.398.194.702.298.893-.194-.051-.435-.162-.736-.398.061-.119.224-.3.438-.495zM8.87%204.141c0%20.152-.123.276-.276.276s-.275-.124-.275-.276.123-.276.276-.276.275.124.275.276zm-.735-.389a1.15%201.15%200%200%200-.314.783%201.16%201.16%200%200%200%201.162%201.162c.457%200%20.842-.27%201.032-.653.026.117.042.238.042.362a1.68%201.68%200%200%201-1.679%201.679%201.68%201.68%200%200%201-1.679-1.679c0-.843.626-1.535%201.436-1.654zM5.059%205.406A1.68%201.68%200%200%201%203.38%207.085a1.68%201.68%200%200%201-1.679-1.679c0-.037.009-.072.011-.109.21.3.541.508.935.508a1.16%201.16%200%200%200%201.162-1.162%201.14%201.14%200%200%200-.474-.912c.015%200%20.03-.005.045-.005.926.001%201.679.754%201.679%201.68zM3.198%204.141c0%20.152-.123.276-.276.276s-.275-.124-.275-.276.123-.276.276-.276.275.124.275.276zM1.375%208.964c0-.52.103-1.035.288-1.52.466.394%201.06.64%201.717.64%201.144%200%202.116-.725%202.499-1.738.383%201.012%201.355%201.738%202.499%201.738.867%200%201.631-.421%202.121-1.062.307.605.478%201.267.478%201.942%200%202.486-2.153%204.51-4.801%204.51s-4.801-2.023-4.801-4.51zm24.342%2019.349c-.985.498-2.267.168-3.813-.979-3.073-2.281-5.453-3.199-7.813-.705-1.315%201.391-4.163%203.365-8.423.97-3.174-1.786-2.239-6.266-1.261-9.479l.146-.492c.276-1.02.395-2.457.444-3.268a6.11%206.11%200%200%200%201.18.115%206.01%206.01%200%200%200%202.536-.562l-.006.175c-.802.215-1.848.612-2.021%201.25-.079.295.021.601.274.837.219.203.415.364.598.501-.667.304-1.243.698-1.311%201.179-.02.144-.022.507.393.787.213.144.395.26.564.365-1.285.521-1.361.96-1.381%201.126-.018.142-.011.496.427.746l.854.489c-.473.389-.971.914-.999%201.429-.018.278.095.532.316.713.675.556%201.231.721%201.653.721.059%200%20.104-.014.158-.02.207.707.641%201.64%201.513%201.64h.013c.8-.008%201.236-.345%201.462-.626.173-.216.268-.457.325-.692.424.195.93.374%201.372.374.151%200%20.294-.021.423-.068.732-.27.944-.704.993-1.021.009-.061.003-.119.002-.179.266.086.538.147.789.147.15%200%20.294-.021.423-.069.542-.2.797-.489.914-.754.237.147.478.258.704.288.106.014.205.021.296.021.356%200%20.595-.101.767-.229.438.435%201.094.992%201.656%201.067.106.014.205.021.296.021a1.56%201.56%200%200%200%20.323-.035c.17.575.453%201.289.866%201.605.358.273.665.362.914.362a.99.99%200%200%200%20.421-.093%201.03%201.03%200%200%200%20.245-.164c.168.428.39.846.68%201.068.358.273.665.362.913.362a.99.99%200%200%200%20.421-.093c.317-.148.512-.448.639-.762.251.157.495.257.726.257.127%200%20.25-.024.37-.071.427-.17.706-.617.841-1.314.022-.015.047-.022.068-.038.067-.051.133-.104.196-.159-.443%201.486-1.107%202.761-2.086%203.257zM8.66%209.925a.5.5%200%201%200-1%200c0%20.653-.818%201.205-1.787%201.205s-1.787-.552-1.787-1.205a.5.5%200%201%200-1%200c0%201.216%201.25%202.205%202.787%202.205s2.787-.989%202.787-2.205zm4.4%2015.965l-.208.097c-2.661%201.258-4.708%201.436-6.086.527-1.542-1.017-1.88-3.19-1.844-4.198a.4.4%200%200%200-.385-.414c-.242-.029-.406.164-.414.385-.046%201.249.367%203.686%202.202%204.896.708.467%201.547.7%202.51.7%201.248%200%202.706-.392%204.362-1.174l.185-.086a.4.4%200%200%200%20.205-.527c-.089-.204-.326-.291-.527-.206zM9.547%202.292c.093.077.205.114.317.114a.5.5%200%200%200%20.318-.886L8.817.397a.5.5%200%200%200-.703.068.5.5%200%200%200%20.069.703l1.364%201.124zm-7.661-.065c.086%200%20.173-.022.253-.068l1.523-.893a.5.5%200%200%200-.506-.863l-1.523.892a.5.5%200%200%200-.179.685c.094.158.261.247.432.247z%22%20transform%3D%22matrix%28-1%200%200%201%2058%200%29%22%20fill%3D%22%233bb300%22/%3E%3Cpath%20d%3D%22M.3%2021.86V10.18q0-.46.02-.68.04-.22.18-.5.28-.54%201.34-.54%201.06%200%201.42.28.38.26.44.78.76-1.04%202.38-1.04%201.64%200%203.1%201.54%201.46%201.54%201.46%203.58%200%202.04-1.46%203.58-1.44%201.54-3.08%201.54-1.64%200-2.38-.92v4.04q0%20.46-.04.68-.02.22-.18.5-.14.3-.5.42-.36.12-.98.12-.62%200-1-.12-.36-.12-.52-.4-.14-.28-.18-.5-.02-.22-.02-.68zm3.96-9.42q-.46.54-.46%201.18%200%20.64.46%201.18.48.52%201.2.52.74%200%201.24-.52.52-.52.52-1.18%200-.66-.48-1.18-.48-.54-1.26-.54-.76%200-1.22.54zm14.741-8.36q.16-.3.54-.42.38-.12%201-.12.64%200%201.02.12.38.12.52.42.16.3.18.54.04.22.04.68v11.94q0%20.46-.04.7-.02.22-.18.5-.3.54-1.7.54-1.38%200-1.54-.98-.84.96-2.34.96-1.8%200-3.28-1.56-1.48-1.58-1.48-3.66%200-2.1%201.48-3.68%201.5-1.58%203.28-1.58%201.48%200%202.3%201v-4.2q0-.46.02-.68.04-.24.18-.52zm-3.24%2010.86q.52.54%201.26.54.74%200%201.22-.54.5-.54.5-1.18%200-.66-.48-1.22-.46-.56-1.26-.56-.8%200-1.28.56-.48.54-.48%201.2%200%20.66.52%201.2zm7.833-1.2q0-2.4%201.68-3.96%201.68-1.56%203.84-1.56%202.16%200%203.82%201.56%201.66%201.54%201.66%203.94%200%201.66-.86%202.96-.86%201.28-2.1%201.9-1.22.6-2.54.6-1.32%200-2.56-.64-1.24-.66-2.1-1.92-.84-1.28-.84-2.88zm4.18%201.44q.64.48%201.3.48.66%200%201.32-.5.66-.5.66-1.48%200-.98-.62-1.46-.62-.48-1.34-.48-.72%200-1.34.5-.62.5-.62%201.48%200%20.96.64%201.46zm11.412-1.44q0%20.84.56%201.32.56.46%201.18.46.64%200%201.18-.36.56-.38.9-.38.6%200%201.46%201.06.46.58.46%201.04%200%20.76-1.1%201.42-1.14.8-2.8.8-1.86%200-3.58-1.34-.82-.64-1.34-1.7-.52-1.08-.52-2.36%200-1.3.52-2.34.52-1.06%201.34-1.7%201.66-1.32%203.54-1.32.76%200%201.48.22.72.2%201.06.4l.32.2q.36.24.56.38.52.4.52.92%200%20.5-.42%201.14-.72%201.1-1.38%201.1-.38%200-1.08-.44-.36-.34-1.04-.34-.66%200-1.24.48-.58.48-.58%201.34z%22%20fill%3D%22green%22/%3E%3C/svg%3E"/> + </a> +</div> + </nav> + <main class="pdoc"> + <section class="module-info"> + <a class="pdoc-button git-button" href="https://github.com/tobymao/sqlglot/tree/main/sqlglot/schema.py">Edit on GitHub</a> + <h1 class="modulename"> +<a href="./../sqlglot.html">sqlglot</a><wbr>.schema </h1> + + + <input id="mod-schema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> + + <label class="view-source-button" for="mod-schema-view-source"><span>View Source</span></label> + + <div class="pdoc-code codehilite"><pre><span></span><span id="L-1"><a href="#L-1"><span class="linenos"> 1</span></a><span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">annotations</span> +</span><span id="L-2"><a href="#L-2"><span class="linenos"> 2</span></a> +</span><span id="L-3"><a href="#L-3"><span class="linenos"> 3</span></a><span class="kn">import</span> <span class="nn">abc</span> +</span><span id="L-4"><a href="#L-4"><span class="linenos"> 4</span></a><span class="kn">import</span> <span class="nn">typing</span> <span class="k">as</span> <span class="nn">t</span> +</span><span id="L-5"><a href="#L-5"><span class="linenos"> 5</span></a> +</span><span id="L-6"><a href="#L-6"><span class="linenos"> 6</span></a><span class="kn">import</span> <span class="nn">sqlglot</span> +</span><span id="L-7"><a href="#L-7"><span class="linenos"> 7</span></a><span class="kn">from</span> <span class="nn">sqlglot</span> <span class="kn">import</span> <span class="n">expressions</span> <span class="k">as</span> <span class="n">exp</span> +</span><span id="L-8"><a href="#L-8"><span class="linenos"> 8</span></a><span class="kn">from</span> <span class="nn">sqlglot.errors</span> <span class="kn">import</span> <span class="n">SchemaError</span> +</span><span id="L-9"><a href="#L-9"><span class="linenos"> 9</span></a><span class="kn">from</span> <span class="nn">sqlglot.helper</span> <span class="kn">import</span> <span class="n">dict_depth</span> +</span><span id="L-10"><a href="#L-10"><span class="linenos"> 10</span></a><span class="kn">from</span> <span class="nn">sqlglot.trie</span> <span class="kn">import</span> <span class="n">in_trie</span><span class="p">,</span> <span class="n">new_trie</span> +</span><span id="L-11"><a href="#L-11"><span class="linenos"> 11</span></a> +</span><span id="L-12"><a href="#L-12"><span class="linenos"> 12</span></a><span class="k">if</span> <span class="n">t</span><span class="o">.</span><span class="n">TYPE_CHECKING</span><span class="p">:</span> +</span><span id="L-13"><a href="#L-13"><span class="linenos"> 13</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dataframe.sql.types</span> <span class="kn">import</span> <span class="n">StructType</span> +</span><span id="L-14"><a href="#L-14"><span class="linenos"> 14</span></a> <span class="kn">from</span> <span class="nn">sqlglot.dialects.dialect</span> <span class="kn">import</span> <span class="n">DialectType</span> +</span><span id="L-15"><a href="#L-15"><span class="linenos"> 15</span></a> +</span><span id="L-16"><a href="#L-16"><span class="linenos"> 16</span></a> <span class="n">ColumnMapping</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">Union</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">StructType</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">]</span> +</span><span id="L-17"><a href="#L-17"><span class="linenos"> 17</span></a> +</span><span id="L-18"><a href="#L-18"><span class="linenos"> 18</span></a><span class="n">TABLE_ARGS</span> <span class="o">=</span> <span class="p">(</span><span class="s2">"this"</span><span class="p">,</span> <span class="s2">"db"</span><span class="p">,</span> <span class="s2">"catalog"</span><span class="p">)</span> +</span><span id="L-19"><a href="#L-19"><span class="linenos"> 19</span></a> +</span><span id="L-20"><a href="#L-20"><span class="linenos"> 20</span></a><span class="n">T</span> <span class="o">=</span> <span class="n">t</span><span class="o">.</span><span class="n">TypeVar</span><span class="p">(</span><span class="s2">"T"</span><span class="p">)</span> +</span><span id="L-21"><a href="#L-21"><span class="linenos"> 21</span></a> +</span><span id="L-22"><a href="#L-22"><span class="linenos"> 22</span></a> +</span><span id="L-23"><a href="#L-23"><span class="linenos"> 23</span></a><span class="k">class</span> <span class="nc">Schema</span><span class="p">(</span><span class="n">abc</span><span class="o">.</span><span class="n">ABC</span><span class="p">):</span> +</span><span id="L-24"><a href="#L-24"><span class="linenos"> 24</span></a><span class="w"> </span><span class="sd">"""Abstract base class for database schemas"""</span> +</span><span id="L-25"><a href="#L-25"><span class="linenos"> 25</span></a> +</span><span id="L-26"><a href="#L-26"><span class="linenos"> 26</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="L-27"><a href="#L-27"><span class="linenos"> 27</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="L-28"><a href="#L-28"><span class="linenos"> 28</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-29"><a href="#L-29"><span class="linenos"> 29</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-30"><a href="#L-30"><span class="linenos"> 30</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-31"><a href="#L-31"><span class="linenos"> 31</span></a><span class="sd"> Register or update a table. Some implementing classes may require column information to also be provided.</span> +</span><span id="L-32"><a href="#L-32"><span class="linenos"> 32</span></a> +</span><span id="L-33"><a href="#L-33"><span class="linenos"> 33</span></a><span class="sd"> Args:</span> +</span><span id="L-34"><a href="#L-34"><span class="linenos"> 34</span></a><span class="sd"> table: table expression instance or string representing the table.</span> +</span><span id="L-35"><a href="#L-35"><span class="linenos"> 35</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="L-36"><a href="#L-36"><span class="linenos"> 36</span></a><span class="sd"> """</span> +</span><span id="L-37"><a href="#L-37"><span class="linenos"> 37</span></a> +</span><span id="L-38"><a href="#L-38"><span class="linenos"> 38</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="L-39"><a href="#L-39"><span class="linenos"> 39</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="L-40"><a href="#L-40"><span class="linenos"> 40</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-41"><a href="#L-41"><span class="linenos"> 41</span></a><span class="sd"> Get the column names for a table.</span> +</span><span id="L-42"><a href="#L-42"><span class="linenos"> 42</span></a> +</span><span id="L-43"><a href="#L-43"><span class="linenos"> 43</span></a><span class="sd"> Args:</span> +</span><span id="L-44"><a href="#L-44"><span class="linenos"> 44</span></a><span class="sd"> table: the `Table` expression instance.</span> +</span><span id="L-45"><a href="#L-45"><span class="linenos"> 45</span></a><span class="sd"> only_visible: whether to include invisible columns.</span> +</span><span id="L-46"><a href="#L-46"><span class="linenos"> 46</span></a> +</span><span id="L-47"><a href="#L-47"><span class="linenos"> 47</span></a><span class="sd"> Returns:</span> +</span><span id="L-48"><a href="#L-48"><span class="linenos"> 48</span></a><span class="sd"> The list of column names.</span> +</span><span id="L-49"><a href="#L-49"><span class="linenos"> 49</span></a><span class="sd"> """</span> +</span><span id="L-50"><a href="#L-50"><span class="linenos"> 50</span></a> +</span><span id="L-51"><a href="#L-51"><span class="linenos"> 51</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="L-52"><a href="#L-52"><span class="linenos"> 52</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="L-53"><a href="#L-53"><span class="linenos"> 53</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-54"><a href="#L-54"><span class="linenos"> 54</span></a><span class="sd"> Get the :class:`sqlglot.exp.DataType` type of a column in the schema.</span> +</span><span id="L-55"><a href="#L-55"><span class="linenos"> 55</span></a> +</span><span id="L-56"><a href="#L-56"><span class="linenos"> 56</span></a><span class="sd"> Args:</span> +</span><span id="L-57"><a href="#L-57"><span class="linenos"> 57</span></a><span class="sd"> table: the source table.</span> +</span><span id="L-58"><a href="#L-58"><span class="linenos"> 58</span></a><span class="sd"> column: the target column.</span> +</span><span id="L-59"><a href="#L-59"><span class="linenos"> 59</span></a> +</span><span id="L-60"><a href="#L-60"><span class="linenos"> 60</span></a><span class="sd"> Returns:</span> +</span><span id="L-61"><a href="#L-61"><span class="linenos"> 61</span></a><span class="sd"> The resulting column type.</span> +</span><span id="L-62"><a href="#L-62"><span class="linenos"> 62</span></a><span class="sd"> """</span> +</span><span id="L-63"><a href="#L-63"><span class="linenos"> 63</span></a> +</span><span id="L-64"><a href="#L-64"><span class="linenos"> 64</span></a> <span class="nd">@property</span> +</span><span id="L-65"><a href="#L-65"><span class="linenos"> 65</span></a> <span class="k">def</span> <span class="nf">supported_table_args</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]:</span> +</span><span id="L-66"><a href="#L-66"><span class="linenos"> 66</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-67"><a href="#L-67"><span class="linenos"> 67</span></a><span class="sd"> Table arguments this schema support, e.g. `("this", "db", "catalog")`</span> +</span><span id="L-68"><a href="#L-68"><span class="linenos"> 68</span></a><span class="sd"> """</span> +</span><span id="L-69"><a href="#L-69"><span class="linenos"> 69</span></a> <span class="k">raise</span> <span class="ne">NotImplementedError</span> +</span><span id="L-70"><a href="#L-70"><span class="linenos"> 70</span></a> +</span><span id="L-71"><a href="#L-71"><span class="linenos"> 71</span></a> +</span><span id="L-72"><a href="#L-72"><span class="linenos"> 72</span></a><span class="k">class</span> <span class="nc">AbstractMappingSchema</span><span class="p">(</span><span class="n">t</span><span class="o">.</span><span class="n">Generic</span><span class="p">[</span><span class="n">T</span><span class="p">]):</span> +</span><span id="L-73"><a href="#L-73"><span class="linenos"> 73</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="L-74"><a href="#L-74"><span class="linenos"> 74</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="L-75"><a href="#L-75"><span class="linenos"> 75</span></a> <span class="n">mapping</span><span class="p">:</span> <span class="nb">dict</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="L-76"><a href="#L-76"><span class="linenos"> 76</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-77"><a href="#L-77"><span class="linenos"> 77</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span> <span class="o">=</span> <span class="n">mapping</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="L-78"><a href="#L-78"><span class="linenos"> 78</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="L-79"><a href="#L-79"><span class="linenos"> 79</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="L-80"><a href="#L-80"><span class="linenos"> 80</span></a> +</span><span id="L-81"><a href="#L-81"><span class="linenos"> 81</span></a> <span class="k">def</span> <span class="nf">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">:</span> +</span><span id="L-82"><a href="#L-82"><span class="linenos"> 82</span></a> <span class="k">return</span> <span class="n">new_trie</span><span class="p">(</span><span class="nb">tuple</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="n">t</span><span class="p">))</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_depth</span><span class="p">()))</span> +</span><span id="L-83"><a href="#L-83"><span class="linenos"> 83</span></a> +</span><span id="L-84"><a href="#L-84"><span class="linenos"> 84</span></a> <span class="k">def</span> <span class="nf">_depth</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span> +</span><span id="L-85"><a href="#L-85"><span class="linenos"> 85</span></a> <span class="k">return</span> <span class="n">dict_depth</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="L-86"><a href="#L-86"><span class="linenos"> 86</span></a> +</span><span id="L-87"><a href="#L-87"><span class="linenos"> 87</span></a> <span class="nd">@property</span> +</span><span id="L-88"><a href="#L-88"><span class="linenos"> 88</span></a> <span class="k">def</span> <span class="nf">supported_table_args</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]:</span> +</span><span id="L-89"><a href="#L-89"><span class="linenos"> 89</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">:</span> +</span><span id="L-90"><a href="#L-90"><span class="linenos"> 90</span></a> <span class="n">depth</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_depth</span><span class="p">()</span> +</span><span id="L-91"><a href="#L-91"><span class="linenos"> 91</span></a> +</span><span id="L-92"><a href="#L-92"><span class="linenos"> 92</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">depth</span><span class="p">:</span> <span class="c1"># None</span> +</span><span id="L-93"><a href="#L-93"><span class="linenos"> 93</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="L-94"><a href="#L-94"><span class="linenos"> 94</span></a> <span class="k">elif</span> <span class="mi">1</span> <span class="o"><=</span> <span class="n">depth</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> +</span><span id="L-95"><a href="#L-95"><span class="linenos"> 95</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="o">=</span> <span class="n">TABLE_ARGS</span><span class="p">[:</span><span class="n">depth</span><span class="p">]</span> +</span><span id="L-96"><a href="#L-96"><span class="linenos"> 96</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-97"><a href="#L-97"><span class="linenos"> 97</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Invalid mapping shape. Depth: </span><span class="si">{</span><span class="n">depth</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-98"><a href="#L-98"><span class="linenos"> 98</span></a> +</span><span id="L-99"><a href="#L-99"><span class="linenos"> 99</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> +</span><span id="L-100"><a href="#L-100"><span class="linenos">100</span></a> +</span><span id="L-101"><a href="#L-101"><span class="linenos">101</span></a> <span class="k">def</span> <span class="nf">table_parts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="L-102"><a href="#L-102"><span class="linenos">102</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="L-103"><a href="#L-103"><span class="linenos">103</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> +</span><span id="L-104"><a href="#L-104"><span class="linenos">104</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)</span> <span class="k">for</span> <span class="n">part</span> <span class="ow">in</span> <span class="n">TABLE_ARGS</span> <span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)]</span> +</span><span id="L-105"><a href="#L-105"><span class="linenos">105</span></a> +</span><span id="L-106"><a href="#L-106"><span class="linenos">106</span></a> <span class="k">def</span> <span class="nf">find</span><span class="p">(</span> +</span><span id="L-107"><a href="#L-107"><span class="linenos">107</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">,</span> <span class="n">trie</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="L-108"><a href="#L-108"><span class="linenos">108</span></a> <span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">T</span><span class="p">]:</span> +</span><span id="L-109"><a href="#L-109"><span class="linenos">109</span></a> <span class="n">parts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table</span><span class="p">)[</span><span class="mi">0</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">supported_table_args</span><span class="p">)]</span> +</span><span id="L-110"><a href="#L-110"><span class="linenos">110</span></a> <span class="n">value</span><span class="p">,</span> <span class="n">trie</span> <span class="o">=</span> <span class="n">in_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="k">if</span> <span class="n">trie</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">trie</span><span class="p">,</span> <span class="n">parts</span><span class="p">)</span> +</span><span id="L-111"><a href="#L-111"><span class="linenos">111</span></a> +</span><span id="L-112"><a href="#L-112"><span class="linenos">112</span></a> <span class="k">if</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> +</span><span id="L-113"><a href="#L-113"><span class="linenos">113</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-114"><a href="#L-114"><span class="linenos">114</span></a> <span class="k">elif</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-115"><a href="#L-115"><span class="linenos">115</span></a> <span class="n">possibilities</span> <span class="o">=</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">trie</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="n">dict_depth</span><span class="p">(</span><span class="n">trie</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="L-116"><a href="#L-116"><span class="linenos">116</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">possibilities</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-117"><a href="#L-117"><span class="linenos">117</span></a> <span class="n">parts</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">possibilities</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> +</span><span id="L-118"><a href="#L-118"><span class="linenos">118</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-119"><a href="#L-119"><span class="linenos">119</span></a> <span class="n">message</span> <span class="o">=</span> <span class="s2">", "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">"."</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span> <span class="k">for</span> <span class="n">parts</span> <span class="ow">in</span> <span class="n">possibilities</span><span class="p">)</span> +</span><span id="L-120"><a href="#L-120"><span class="linenos">120</span></a> <span class="k">if</span> <span class="n">raise_on_missing</span><span class="p">:</span> +</span><span id="L-121"><a href="#L-121"><span class="linenos">121</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Ambiguous mapping for </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">: </span><span class="si">{</span><span class="n">message</span><span class="si">}</span><span class="s2">."</span><span class="p">)</span> +</span><span id="L-122"><a href="#L-122"><span class="linenos">122</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-123"><a href="#L-123"><span class="linenos">123</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="n">parts</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="n">raise_on_missing</span><span class="p">)</span> +</span><span id="L-124"><a href="#L-124"><span class="linenos">124</span></a> +</span><span id="L-125"><a href="#L-125"><span class="linenos">125</span></a> <span class="k">def</span> <span class="nf">_nested_get</span><span class="p">(</span> +</span><span id="L-126"><a href="#L-126"><span class="linenos">126</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">parts</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Sequence</span><span class="p">[</span><span class="nb">str</span><span class="p">],</span> <span class="n">d</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">True</span> +</span><span id="L-127"><a href="#L-127"><span class="linenos">127</span></a> <span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]:</span> +</span><span id="L-128"><a href="#L-128"><span class="linenos">128</span></a> <span class="k">return</span> <span class="n">_nested_get</span><span class="p">(</span> +</span><span id="L-129"><a href="#L-129"><span class="linenos">129</span></a> <span class="n">d</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="L-130"><a href="#L-130"><span class="linenos">130</span></a> <span class="o">*</span><span class="nb">zip</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">supported_table_args</span><span class="p">,</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">parts</span><span class="p">)),</span> +</span><span id="L-131"><a href="#L-131"><span class="linenos">131</span></a> <span class="n">raise_on_missing</span><span class="o">=</span><span class="n">raise_on_missing</span><span class="p">,</span> +</span><span id="L-132"><a href="#L-132"><span class="linenos">132</span></a> <span class="p">)</span> +</span><span id="L-133"><a href="#L-133"><span class="linenos">133</span></a> +</span><span id="L-134"><a href="#L-134"><span class="linenos">134</span></a> +</span><span id="L-135"><a href="#L-135"><span class="linenos">135</span></a><span class="k">class</span> <span class="nc">MappingSchema</span><span class="p">(</span><span class="n">AbstractMappingSchema</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]],</span> <span class="n">Schema</span><span class="p">):</span> +</span><span id="L-136"><a href="#L-136"><span class="linenos">136</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-137"><a href="#L-137"><span class="linenos">137</span></a><span class="sd"> Schema based on a nested mapping.</span> +</span><span id="L-138"><a href="#L-138"><span class="linenos">138</span></a> +</span><span id="L-139"><a href="#L-139"><span class="linenos">139</span></a><span class="sd"> Args:</span> +</span><span id="L-140"><a href="#L-140"><span class="linenos">140</span></a><span class="sd"> schema (dict): Mapping in one of the following forms:</span> +</span><span id="L-141"><a href="#L-141"><span class="linenos">141</span></a><span class="sd"> 1. {table: {col: type}}</span> +</span><span id="L-142"><a href="#L-142"><span class="linenos">142</span></a><span class="sd"> 2. {db: {table: {col: type}}}</span> +</span><span id="L-143"><a href="#L-143"><span class="linenos">143</span></a><span class="sd"> 3. {catalog: {db: {table: {col: type}}}}</span> +</span><span id="L-144"><a href="#L-144"><span class="linenos">144</span></a><span class="sd"> 4. None - Tables will be added later</span> +</span><span id="L-145"><a href="#L-145"><span class="linenos">145</span></a><span class="sd"> visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns</span> +</span><span id="L-146"><a href="#L-146"><span class="linenos">146</span></a><span class="sd"> are assumed to be visible. The nesting should mirror that of the schema:</span> +</span><span id="L-147"><a href="#L-147"><span class="linenos">147</span></a><span class="sd"> 1. {table: set(*cols)}}</span> +</span><span id="L-148"><a href="#L-148"><span class="linenos">148</span></a><span class="sd"> 2. {db: {table: set(*cols)}}}</span> +</span><span id="L-149"><a href="#L-149"><span class="linenos">149</span></a><span class="sd"> 3. {catalog: {db: {table: set(*cols)}}}}</span> +</span><span id="L-150"><a href="#L-150"><span class="linenos">150</span></a><span class="sd"> dialect (str): The dialect to be used for custom type mappings.</span> +</span><span id="L-151"><a href="#L-151"><span class="linenos">151</span></a><span class="sd"> """</span> +</span><span id="L-152"><a href="#L-152"><span class="linenos">152</span></a> +</span><span id="L-153"><a href="#L-153"><span class="linenos">153</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="L-154"><a href="#L-154"><span class="linenos">154</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="L-155"><a href="#L-155"><span class="linenos">155</span></a> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="L-156"><a href="#L-156"><span class="linenos">156</span></a> <span class="n">visible</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="L-157"><a href="#L-157"><span class="linenos">157</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">DialectType</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="L-158"><a href="#L-158"><span class="linenos">158</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-159"><a href="#L-159"><span class="linenos">159</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span> <span class="o">=</span> <span class="n">dialect</span> +</span><span id="L-160"><a href="#L-160"><span class="linenos">160</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span> <span class="o">=</span> <span class="n">visible</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="L-161"><a href="#L-161"><span class="linenos">161</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-162"><a href="#L-162"><span class="linenos">162</span></a> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize</span><span class="p">(</span><span class="n">schema</span> <span class="ow">or</span> <span class="p">{}))</span> +</span><span id="L-163"><a href="#L-163"><span class="linenos">163</span></a> +</span><span id="L-164"><a href="#L-164"><span class="linenos">164</span></a> <span class="nd">@classmethod</span> +</span><span id="L-165"><a href="#L-165"><span class="linenos">165</span></a> <span class="k">def</span> <span class="nf">from_mapping_schema</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">mapping_schema</span><span class="p">:</span> <span class="n">MappingSchema</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="L-166"><a href="#L-166"><span class="linenos">166</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="L-167"><a href="#L-167"><span class="linenos">167</span></a> <span class="n">schema</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="L-168"><a href="#L-168"><span class="linenos">168</span></a> <span class="n">visible</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">visible</span><span class="p">,</span> +</span><span id="L-169"><a href="#L-169"><span class="linenos">169</span></a> <span class="n">dialect</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="L-170"><a href="#L-170"><span class="linenos">170</span></a> <span class="p">)</span> +</span><span id="L-171"><a href="#L-171"><span class="linenos">171</span></a> +</span><span id="L-172"><a href="#L-172"><span class="linenos">172</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="L-173"><a href="#L-173"><span class="linenos">173</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="L-174"><a href="#L-174"><span class="linenos">174</span></a> <span class="o">**</span><span class="p">{</span> <span class="c1"># type: ignore</span> +</span><span id="L-175"><a href="#L-175"><span class="linenos">175</span></a> <span class="s2">"schema"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="L-176"><a href="#L-176"><span class="linenos">176</span></a> <span class="s2">"visible"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="L-177"><a href="#L-177"><span class="linenos">177</span></a> <span class="s2">"dialect"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="L-178"><a href="#L-178"><span class="linenos">178</span></a> <span class="o">**</span><span class="n">kwargs</span><span class="p">,</span> +</span><span id="L-179"><a href="#L-179"><span class="linenos">179</span></a> <span class="p">}</span> +</span><span id="L-180"><a href="#L-180"><span class="linenos">180</span></a> <span class="p">)</span> +</span><span id="L-181"><a href="#L-181"><span class="linenos">181</span></a> +</span><span id="L-182"><a href="#L-182"><span class="linenos">182</span></a> <span class="k">def</span> <span class="nf">_normalize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">:</span> +</span><span id="L-183"><a href="#L-183"><span class="linenos">183</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-184"><a href="#L-184"><span class="linenos">184</span></a><span class="sd"> Converts all identifiers in the schema into lowercase, unless they're quoted.</span> +</span><span id="L-185"><a href="#L-185"><span class="linenos">185</span></a> +</span><span id="L-186"><a href="#L-186"><span class="linenos">186</span></a><span class="sd"> Args:</span> +</span><span id="L-187"><a href="#L-187"><span class="linenos">187</span></a><span class="sd"> schema: the schema to normalize.</span> +</span><span id="L-188"><a href="#L-188"><span class="linenos">188</span></a> +</span><span id="L-189"><a href="#L-189"><span class="linenos">189</span></a><span class="sd"> Returns:</span> +</span><span id="L-190"><a href="#L-190"><span class="linenos">190</span></a><span class="sd"> The normalized schema mapping.</span> +</span><span id="L-191"><a href="#L-191"><span class="linenos">191</span></a><span class="sd"> """</span> +</span><span id="L-192"><a href="#L-192"><span class="linenos">192</span></a> <span class="n">flattened_schema</span> <span class="o">=</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="n">dict_depth</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="L-193"><a href="#L-193"><span class="linenos">193</span></a> +</span><span id="L-194"><a href="#L-194"><span class="linenos">194</span></a> <span class="n">normalized_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="L-195"><a href="#L-195"><span class="linenos">195</span></a> <span class="k">for</span> <span class="n">keys</span> <span class="ow">in</span> <span class="n">flattened_schema</span><span class="p">:</span> +</span><span id="L-196"><a href="#L-196"><span class="linenos">196</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">_nested_get</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="o">*</span><span class="nb">zip</span><span class="p">(</span><span class="n">keys</span><span class="p">,</span> <span class="n">keys</span><span class="p">))</span> +</span><span id="L-197"><a href="#L-197"><span class="linenos">197</span></a> <span class="k">assert</span> <span class="n">columns</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="L-198"><a href="#L-198"><span class="linenos">198</span></a> +</span><span id="L-199"><a href="#L-199"><span class="linenos">199</span></a> <span class="n">normalized_keys</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize_name</span><span class="p">(</span><span class="n">key</span><span class="p">)</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">keys</span><span class="p">]</span> +</span><span id="L-200"><a href="#L-200"><span class="linenos">200</span></a> <span class="k">for</span> <span class="n">column_name</span><span class="p">,</span> <span class="n">column_type</span> <span class="ow">in</span> <span class="n">columns</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="L-201"><a href="#L-201"><span class="linenos">201</span></a> <span class="n">_nested_set</span><span class="p">(</span> +</span><span id="L-202"><a href="#L-202"><span class="linenos">202</span></a> <span class="n">normalized_mapping</span><span class="p">,</span> +</span><span id="L-203"><a href="#L-203"><span class="linenos">203</span></a> <span class="n">normalized_keys</span> <span class="o">+</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize_name</span><span class="p">(</span><span class="n">column_name</span><span class="p">)],</span> +</span><span id="L-204"><a href="#L-204"><span class="linenos">204</span></a> <span class="n">column_type</span><span class="p">,</span> +</span><span id="L-205"><a href="#L-205"><span class="linenos">205</span></a> <span class="p">)</span> +</span><span id="L-206"><a href="#L-206"><span class="linenos">206</span></a> +</span><span id="L-207"><a href="#L-207"><span class="linenos">207</span></a> <span class="k">return</span> <span class="n">normalized_mapping</span> +</span><span id="L-208"><a href="#L-208"><span class="linenos">208</span></a> +</span><span id="L-209"><a href="#L-209"><span class="linenos">209</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="L-210"><a href="#L-210"><span class="linenos">210</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-211"><a href="#L-211"><span class="linenos">211</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-212"><a href="#L-212"><span class="linenos">212</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-213"><a href="#L-213"><span class="linenos">213</span></a><span class="sd"> Register or update a table. Updates are only performed if a new column mapping is provided.</span> +</span><span id="L-214"><a href="#L-214"><span class="linenos">214</span></a> +</span><span id="L-215"><a href="#L-215"><span class="linenos">215</span></a><span class="sd"> Args:</span> +</span><span id="L-216"><a href="#L-216"><span class="linenos">216</span></a><span class="sd"> table: the `Table` expression instance or string representing the table.</span> +</span><span id="L-217"><a href="#L-217"><span class="linenos">217</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="L-218"><a href="#L-218"><span class="linenos">218</span></a><span class="sd"> """</span> +</span><span id="L-219"><a href="#L-219"><span class="linenos">219</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-220"><a href="#L-220"><span class="linenos">220</span></a> <span class="n">column_mapping</span> <span class="o">=</span> <span class="n">ensure_column_mapping</span><span class="p">(</span><span class="n">column_mapping</span><span class="p">)</span> +</span><span id="L-221"><a href="#L-221"><span class="linenos">221</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-222"><a href="#L-222"><span class="linenos">222</span></a> +</span><span id="L-223"><a href="#L-223"><span class="linenos">223</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">column_mapping</span><span class="p">:</span> +</span><span id="L-224"><a href="#L-224"><span class="linenos">224</span></a> <span class="k">return</span> +</span><span id="L-225"><a href="#L-225"><span class="linenos">225</span></a> +</span><span id="L-226"><a href="#L-226"><span class="linenos">226</span></a> <span class="n">_nested_set</span><span class="p">(</span> +</span><span id="L-227"><a href="#L-227"><span class="linenos">227</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="L-228"><a href="#L-228"><span class="linenos">228</span></a> <span class="nb">list</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">))),</span> +</span><span id="L-229"><a href="#L-229"><span class="linenos">229</span></a> <span class="n">column_mapping</span><span class="p">,</span> +</span><span id="L-230"><a href="#L-230"><span class="linenos">230</span></a> <span class="p">)</span> +</span><span id="L-231"><a href="#L-231"><span class="linenos">231</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="L-232"><a href="#L-232"><span class="linenos">232</span></a> +</span><span id="L-233"><a href="#L-233"><span class="linenos">233</span></a> <span class="k">def</span> <span class="nf">_normalize_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> +</span><span id="L-234"><a href="#L-234"><span class="linenos">234</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-235"><a href="#L-235"><span class="linenos">235</span></a> <span class="n">identifier</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">parse_one</span><span class="p">(</span> +</span><span id="L-236"><a href="#L-236"><span class="linenos">236</span></a> <span class="n">name</span><span class="p">,</span> <span class="n">read</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> <span class="n">into</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span> +</span><span id="L-237"><a href="#L-237"><span class="linenos">237</span></a> <span class="p">)</span> +</span><span id="L-238"><a href="#L-238"><span class="linenos">238</span></a> <span class="k">except</span><span class="p">:</span> +</span><span id="L-239"><a href="#L-239"><span class="linenos">239</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> +</span><span id="L-240"><a href="#L-240"><span class="linenos">240</span></a> <span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> +</span><span id="L-241"><a href="#L-241"><span class="linenos">241</span></a> +</span><span id="L-242"><a href="#L-242"><span class="linenos">242</span></a> <span class="k">if</span> <span class="n">identifier</span><span class="o">.</span><span class="n">quoted</span><span class="p">:</span> +</span><span id="L-243"><a href="#L-243"><span class="linenos">243</span></a> <span class="k">return</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-244"><a href="#L-244"><span class="linenos">244</span></a> <span class="k">return</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="L-245"><a href="#L-245"><span class="linenos">245</span></a> +</span><span id="L-246"><a href="#L-246"><span class="linenos">246</span></a> <span class="k">def</span> <span class="nf">_depth</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span> +</span><span id="L-247"><a href="#L-247"><span class="linenos">247</span></a> <span class="c1"># The columns themselves are a mapping, but we don't want to include those</span> +</span><span id="L-248"><a href="#L-248"><span class="linenos">248</span></a> <span class="k">return</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_depth</span><span class="p">()</span> <span class="o">-</span> <span class="mi">1</span> +</span><span id="L-249"><a href="#L-249"><span class="linenos">249</span></a> +</span><span id="L-250"><a href="#L-250"><span class="linenos">250</span></a> <span class="k">def</span> <span class="nf">_ensure_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">:</span> +</span><span id="L-251"><a href="#L-251"><span class="linenos">251</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-252"><a href="#L-252"><span class="linenos">252</span></a> +</span><span id="L-253"><a href="#L-253"><span class="linenos">253</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_</span><span class="p">:</span> +</span><span id="L-254"><a href="#L-254"><span class="linenos">254</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Not a valid table '</span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="L-255"><a href="#L-255"><span class="linenos">255</span></a> +</span><span id="L-256"><a href="#L-256"><span class="linenos">256</span></a> <span class="k">return</span> <span class="n">table_</span> +</span><span id="L-257"><a href="#L-257"><span class="linenos">257</span></a> +</span><span id="L-258"><a href="#L-258"><span class="linenos">258</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="L-259"><a href="#L-259"><span class="linenos">259</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-260"><a href="#L-260"><span class="linenos">260</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">)</span> +</span><span id="L-261"><a href="#L-261"><span class="linenos">261</span></a> +</span><span id="L-262"><a href="#L-262"><span class="linenos">262</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-263"><a href="#L-263"><span class="linenos">263</span></a> <span class="k">return</span> <span class="p">[]</span> +</span><span id="L-264"><a href="#L-264"><span class="linenos">264</span></a> +</span><span id="L-265"><a href="#L-265"><span class="linenos">265</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">only_visible</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">:</span> +</span><span id="L-266"><a href="#L-266"><span class="linenos">266</span></a> <span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> +</span><span id="L-267"><a href="#L-267"><span class="linenos">267</span></a> +</span><span id="L-268"><a href="#L-268"><span class="linenos">268</span></a> <span class="n">visible</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">)</span> +</span><span id="L-269"><a href="#L-269"><span class="linenos">269</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">col</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">schema</span> <span class="k">if</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">visible</span><span class="p">]</span> <span class="c1"># type: ignore</span> +</span><span id="L-270"><a href="#L-270"><span class="linenos">270</span></a> +</span><span id="L-271"><a href="#L-271"><span class="linenos">271</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span> <span class="o">|</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="L-272"><a href="#L-272"><span class="linenos">272</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="k">else</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> +</span><span id="L-273"><a href="#L-273"><span class="linenos">273</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="L-274"><a href="#L-274"><span class="linenos">274</span></a> <span class="k">if</span> <span class="n">table_</span><span class="p">:</span> +</span><span id="L-275"><a href="#L-275"><span class="linenos">275</span></a> <span class="n">table_schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="L-276"><a href="#L-276"><span class="linenos">276</span></a> <span class="k">if</span> <span class="n">table_schema</span><span class="p">:</span> +</span><span id="L-277"><a href="#L-277"><span class="linenos">277</span></a> <span class="n">column_type</span> <span class="o">=</span> <span class="n">table_schema</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="L-278"><a href="#L-278"><span class="linenos">278</span></a> +</span><span id="L-279"><a href="#L-279"><span class="linenos">279</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">):</span> +</span><span id="L-280"><a href="#L-280"><span class="linenos">280</span></a> <span class="k">return</span> <span class="n">column_type</span> +</span><span id="L-281"><a href="#L-281"><span class="linenos">281</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> +</span><span id="L-282"><a href="#L-282"><span class="linenos">282</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_to_data_type</span><span class="p">(</span><span class="n">column_type</span><span class="o">.</span><span class="n">upper</span><span class="p">())</span> +</span><span id="L-283"><a href="#L-283"><span class="linenos">283</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown column type '</span><span class="si">{</span><span class="n">column_type</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="L-284"><a href="#L-284"><span class="linenos">284</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">UNKNOWN</span><span class="p">)</span> +</span><span id="L-285"><a href="#L-285"><span class="linenos">285</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not convert table '</span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="L-286"><a href="#L-286"><span class="linenos">286</span></a> +</span><span id="L-287"><a href="#L-287"><span class="linenos">287</span></a> <span class="k">def</span> <span class="nf">_to_data_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema_type</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="L-288"><a href="#L-288"><span class="linenos">288</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-289"><a href="#L-289"><span class="linenos">289</span></a><span class="sd"> Convert a type represented as a string to the corresponding :class:`sqlglot.exp.DataType` object.</span> +</span><span id="L-290"><a href="#L-290"><span class="linenos">290</span></a> +</span><span id="L-291"><a href="#L-291"><span class="linenos">291</span></a><span class="sd"> Args:</span> +</span><span id="L-292"><a href="#L-292"><span class="linenos">292</span></a><span class="sd"> schema_type: the type we want to convert.</span> +</span><span id="L-293"><a href="#L-293"><span class="linenos">293</span></a> +</span><span id="L-294"><a href="#L-294"><span class="linenos">294</span></a><span class="sd"> Returns:</span> +</span><span id="L-295"><a href="#L-295"><span class="linenos">295</span></a><span class="sd"> The resulting expression type.</span> +</span><span id="L-296"><a href="#L-296"><span class="linenos">296</span></a><span class="sd"> """</span> +</span><span id="L-297"><a href="#L-297"><span class="linenos">297</span></a> <span class="k">if</span> <span class="n">schema_type</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">:</span> +</span><span id="L-298"><a href="#L-298"><span class="linenos">298</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="L-299"><a href="#L-299"><span class="linenos">299</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">maybe_parse</span><span class="p">(</span><span class="n">schema_type</span><span class="p">,</span> <span class="n">into</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">)</span> +</span><span id="L-300"><a href="#L-300"><span class="linenos">300</span></a> <span class="k">if</span> <span class="n">expression</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-301"><a href="#L-301"><span class="linenos">301</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not parse </span><span class="si">{</span><span class="n">schema_type</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-302"><a href="#L-302"><span class="linenos">302</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">[</span><span class="n">schema_type</span><span class="p">]</span> <span class="o">=</span> <span class="n">expression</span> <span class="c1"># type: ignore</span> +</span><span id="L-303"><a href="#L-303"><span class="linenos">303</span></a> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> +</span><span id="L-304"><a href="#L-304"><span class="linenos">304</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Failed to convert type </span><span class="si">{</span><span class="n">schema_type</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-305"><a href="#L-305"><span class="linenos">305</span></a> +</span><span id="L-306"><a href="#L-306"><span class="linenos">306</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">[</span><span class="n">schema_type</span><span class="p">]</span> +</span><span id="L-307"><a href="#L-307"><span class="linenos">307</span></a> +</span><span id="L-308"><a href="#L-308"><span class="linenos">308</span></a> +</span><span id="L-309"><a href="#L-309"><span class="linenos">309</span></a><span class="k">def</span> <span class="nf">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">Schema</span><span class="p">:</span> +</span><span id="L-310"><a href="#L-310"><span class="linenos">310</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">Schema</span><span class="p">):</span> +</span><span id="L-311"><a href="#L-311"><span class="linenos">311</span></a> <span class="k">return</span> <span class="n">schema</span> +</span><span id="L-312"><a href="#L-312"><span class="linenos">312</span></a> +</span><span id="L-313"><a href="#L-313"><span class="linenos">313</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> +</span><span id="L-314"><a href="#L-314"><span class="linenos">314</span></a> +</span><span id="L-315"><a href="#L-315"><span class="linenos">315</span></a> +</span><span id="L-316"><a href="#L-316"><span class="linenos">316</span></a><span class="k">def</span> <span class="nf">ensure_column_mapping</span><span class="p">(</span><span class="n">mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]):</span> +</span><span id="L-317"><a href="#L-317"><span class="linenos">317</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span> +</span><span id="L-318"><a href="#L-318"><span class="linenos">318</span></a> <span class="k">return</span> <span class="n">mapping</span> +</span><span id="L-319"><a href="#L-319"><span class="linenos">319</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> +</span><span id="L-320"><a href="#L-320"><span class="linenos">320</span></a> <span class="n">col_name_type_strs</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">mapping</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">","</span><span class="p">)]</span> +</span><span id="L-321"><a href="#L-321"><span class="linenos">321</span></a> <span class="k">return</span> <span class="p">{</span> +</span><span id="L-322"><a href="#L-322"><span class="linenos">322</span></a> <span class="n">name_type_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">":"</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">():</span> <span class="n">name_type_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">":"</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> +</span><span id="L-323"><a href="#L-323"><span class="linenos">323</span></a> <span class="k">for</span> <span class="n">name_type_str</span> <span class="ow">in</span> <span class="n">col_name_type_strs</span> +</span><span id="L-324"><a href="#L-324"><span class="linenos">324</span></a> <span class="p">}</span> +</span><span id="L-325"><a href="#L-325"><span class="linenos">325</span></a> <span class="c1"># Check if mapping looks like a DataFrame StructType</span> +</span><span id="L-326"><a href="#L-326"><span class="linenos">326</span></a> <span class="k">elif</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="s2">"simpleString"</span><span class="p">):</span> +</span><span id="L-327"><a href="#L-327"><span class="linenos">327</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">struct_field</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">struct_field</span><span class="o">.</span><span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span> <span class="k">for</span> <span class="n">struct_field</span> <span class="ow">in</span> <span class="n">mapping</span><span class="p">}</span> <span class="c1"># type: ignore</span> +</span><span id="L-328"><a href="#L-328"><span class="linenos">328</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span> +</span><span id="L-329"><a href="#L-329"><span class="linenos">329</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">x</span><span class="o">.</span><span class="n">strip</span><span class="p">():</span> <span class="kc">None</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">mapping</span><span class="p">}</span> +</span><span id="L-330"><a href="#L-330"><span class="linenos">330</span></a> <span class="k">elif</span> <span class="n">mapping</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-331"><a href="#L-331"><span class="linenos">331</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="L-332"><a href="#L-332"><span class="linenos">332</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Invalid mapping provided: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">mapping</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-333"><a href="#L-333"><span class="linenos">333</span></a> +</span><span id="L-334"><a href="#L-334"><span class="linenos">334</span></a> +</span><span id="L-335"><a href="#L-335"><span class="linenos">335</span></a><span class="k">def</span> <span class="nf">flatten_schema</span><span class="p">(</span> +</span><span id="L-336"><a href="#L-336"><span class="linenos">336</span></a> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">,</span> <span class="n">depth</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">keys</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="L-337"><a href="#L-337"><span class="linenos">337</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]:</span> +</span><span id="L-338"><a href="#L-338"><span class="linenos">338</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="L-339"><a href="#L-339"><span class="linenos">339</span></a> <span class="n">keys</span> <span class="o">=</span> <span class="n">keys</span> <span class="ow">or</span> <span class="p">[]</span> +</span><span id="L-340"><a href="#L-340"><span class="linenos">340</span></a> +</span><span id="L-341"><a href="#L-341"><span class="linenos">341</span></a> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">schema</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="L-342"><a href="#L-342"><span class="linenos">342</span></a> <span class="k">if</span> <span class="n">depth</span> <span class="o">>=</span> <span class="mi">2</span><span class="p">:</span> +</span><span id="L-343"><a href="#L-343"><span class="linenos">343</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">flatten_schema</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">depth</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">keys</span> <span class="o">+</span> <span class="p">[</span><span class="n">k</span><span class="p">]))</span> +</span><span id="L-344"><a href="#L-344"><span class="linenos">344</span></a> <span class="k">elif</span> <span class="n">depth</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-345"><a href="#L-345"><span class="linenos">345</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">keys</span> <span class="o">+</span> <span class="p">[</span><span class="n">k</span><span class="p">])</span> +</span><span id="L-346"><a href="#L-346"><span class="linenos">346</span></a> <span class="k">return</span> <span class="n">tables</span> +</span><span id="L-347"><a href="#L-347"><span class="linenos">347</span></a> +</span><span id="L-348"><a href="#L-348"><span class="linenos">348</span></a> +</span><span id="L-349"><a href="#L-349"><span class="linenos">349</span></a><span class="k">def</span> <span class="nf">_nested_get</span><span class="p">(</span> +</span><span id="L-350"><a href="#L-350"><span class="linenos">350</span></a> <span class="n">d</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">,</span> <span class="o">*</span><span class="n">path</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">],</span> <span class="n">raise_on_missing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="L-351"><a href="#L-351"><span class="linenos">351</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]:</span> +</span><span id="L-352"><a href="#L-352"><span class="linenos">352</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-353"><a href="#L-353"><span class="linenos">353</span></a><span class="sd"> Get a value for a nested dictionary.</span> +</span><span id="L-354"><a href="#L-354"><span class="linenos">354</span></a> +</span><span id="L-355"><a href="#L-355"><span class="linenos">355</span></a><span class="sd"> Args:</span> +</span><span id="L-356"><a href="#L-356"><span class="linenos">356</span></a><span class="sd"> d: the dictionary to search.</span> +</span><span id="L-357"><a href="#L-357"><span class="linenos">357</span></a><span class="sd"> *path: tuples of (name, key), where:</span> +</span><span id="L-358"><a href="#L-358"><span class="linenos">358</span></a><span class="sd"> `key` is the key in the dictionary to get.</span> +</span><span id="L-359"><a href="#L-359"><span class="linenos">359</span></a><span class="sd"> `name` is a string to use in the error if `key` isn't found.</span> +</span><span id="L-360"><a href="#L-360"><span class="linenos">360</span></a> +</span><span id="L-361"><a href="#L-361"><span class="linenos">361</span></a><span class="sd"> Returns:</span> +</span><span id="L-362"><a href="#L-362"><span class="linenos">362</span></a><span class="sd"> The value or None if it doesn't exist.</span> +</span><span id="L-363"><a href="#L-363"><span class="linenos">363</span></a><span class="sd"> """</span> +</span><span id="L-364"><a href="#L-364"><span class="linenos">364</span></a> <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">path</span><span class="p">:</span> +</span><span id="L-365"><a href="#L-365"><span class="linenos">365</span></a> <span class="n">d</span> <span class="o">=</span> <span class="n">d</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">)</span> <span class="c1"># type: ignore</span> +</span><span id="L-366"><a href="#L-366"><span class="linenos">366</span></a> <span class="k">if</span> <span class="n">d</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="L-367"><a href="#L-367"><span class="linenos">367</span></a> <span class="k">if</span> <span class="n">raise_on_missing</span><span class="p">:</span> +</span><span id="L-368"><a href="#L-368"><span class="linenos">368</span></a> <span class="n">name</span> <span class="o">=</span> <span class="s2">"table"</span> <span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="s2">"this"</span> <span class="k">else</span> <span class="n">name</span> +</span><span id="L-369"><a href="#L-369"><span class="linenos">369</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2">: </span><span class="si">{</span><span class="n">key</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="L-370"><a href="#L-370"><span class="linenos">370</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="L-371"><a href="#L-371"><span class="linenos">371</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="L-372"><a href="#L-372"><span class="linenos">372</span></a> +</span><span id="L-373"><a href="#L-373"><span class="linenos">373</span></a> +</span><span id="L-374"><a href="#L-374"><span class="linenos">374</span></a><span class="k">def</span> <span class="nf">_nested_set</span><span class="p">(</span><span class="n">d</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">,</span> <span class="n">keys</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">],</span> <span class="n">value</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">:</span> +</span><span id="L-375"><a href="#L-375"><span class="linenos">375</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="L-376"><a href="#L-376"><span class="linenos">376</span></a><span class="sd"> In-place set a value for a nested dictionary</span> +</span><span id="L-377"><a href="#L-377"><span class="linenos">377</span></a> +</span><span id="L-378"><a href="#L-378"><span class="linenos">378</span></a><span class="sd"> Example:</span> +</span><span id="L-379"><a href="#L-379"><span class="linenos">379</span></a><span class="sd"> >>> _nested_set({}, ["top_key", "second_key"], "value")</span> +</span><span id="L-380"><a href="#L-380"><span class="linenos">380</span></a><span class="sd"> {'top_key': {'second_key': 'value'}}</span> +</span><span id="L-381"><a href="#L-381"><span class="linenos">381</span></a> +</span><span id="L-382"><a href="#L-382"><span class="linenos">382</span></a><span class="sd"> >>> _nested_set({"top_key": {"third_key": "third_value"}}, ["top_key", "second_key"], "value")</span> +</span><span id="L-383"><a href="#L-383"><span class="linenos">383</span></a><span class="sd"> {'top_key': {'third_key': 'third_value', 'second_key': 'value'}}</span> +</span><span id="L-384"><a href="#L-384"><span class="linenos">384</span></a> +</span><span id="L-385"><a href="#L-385"><span class="linenos">385</span></a><span class="sd"> Args:</span> +</span><span id="L-386"><a href="#L-386"><span class="linenos">386</span></a><span class="sd"> d: dictionary to update.</span> +</span><span id="L-387"><a href="#L-387"><span class="linenos">387</span></a><span class="sd"> keys: the keys that makeup the path to `value`.</span> +</span><span id="L-388"><a href="#L-388"><span class="linenos">388</span></a><span class="sd"> value: the value to set in the dictionary for the given key path.</span> +</span><span id="L-389"><a href="#L-389"><span class="linenos">389</span></a> +</span><span id="L-390"><a href="#L-390"><span class="linenos">390</span></a><span class="sd"> Returns:</span> +</span><span id="L-391"><a href="#L-391"><span class="linenos">391</span></a><span class="sd"> The (possibly) updated dictionary.</span> +</span><span id="L-392"><a href="#L-392"><span class="linenos">392</span></a><span class="sd"> """</span> +</span><span id="L-393"><a href="#L-393"><span class="linenos">393</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">keys</span><span class="p">:</span> +</span><span id="L-394"><a href="#L-394"><span class="linenos">394</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="L-395"><a href="#L-395"><span class="linenos">395</span></a> +</span><span id="L-396"><a href="#L-396"><span class="linenos">396</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">keys</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="L-397"><a href="#L-397"><span class="linenos">397</span></a> <span class="n">d</span><span class="p">[</span><span class="n">keys</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span> <span class="o">=</span> <span class="n">value</span> +</span><span id="L-398"><a href="#L-398"><span class="linenos">398</span></a> <span class="k">return</span> <span class="n">d</span> +</span><span id="L-399"><a href="#L-399"><span class="linenos">399</span></a> +</span><span id="L-400"><a href="#L-400"><span class="linenos">400</span></a> <span class="n">subd</span> <span class="o">=</span> <span class="n">d</span> +</span><span id="L-401"><a href="#L-401"><span class="linenos">401</span></a> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">keys</span><span class="p">[:</span><span class="o">-</span><span class="mi">1</span><span class="p">]:</span> +</span><span id="L-402"><a href="#L-402"><span class="linenos">402</span></a> <span class="k">if</span> <span class="n">key</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">subd</span><span class="p">:</span> +</span><span id="L-403"><a href="#L-403"><span class="linenos">403</span></a> <span class="n">subd</span> <span class="o">=</span> <span class="n">subd</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="p">{})</span> +</span><span id="L-404"><a href="#L-404"><span class="linenos">404</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="L-405"><a href="#L-405"><span class="linenos">405</span></a> <span class="n">subd</span> <span class="o">=</span> <span class="n">subd</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> +</span><span id="L-406"><a href="#L-406"><span class="linenos">406</span></a> +</span><span id="L-407"><a href="#L-407"><span class="linenos">407</span></a> <span class="n">subd</span><span class="p">[</span><span class="n">keys</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]]</span> <span class="o">=</span> <span class="n">value</span> +</span><span id="L-408"><a href="#L-408"><span class="linenos">408</span></a> <span class="k">return</span> <span class="n">d</span> +</span></pre></div> + + + </section> + <section id="Schema"> + <input id="Schema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">Schema</span><wbr>(<span class="base">abc.ABC</span>): + + <label class="view-source-button" for="Schema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Schema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Schema-24"><a href="#Schema-24"><span class="linenos">24</span></a><span class="k">class</span> <span class="nc">Schema</span><span class="p">(</span><span class="n">abc</span><span class="o">.</span><span class="n">ABC</span><span class="p">):</span> +</span><span id="Schema-25"><a href="#Schema-25"><span class="linenos">25</span></a><span class="w"> </span><span class="sd">"""Abstract base class for database schemas"""</span> +</span><span id="Schema-26"><a href="#Schema-26"><span class="linenos">26</span></a> +</span><span id="Schema-27"><a href="#Schema-27"><span class="linenos">27</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema-28"><a href="#Schema-28"><span class="linenos">28</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="Schema-29"><a href="#Schema-29"><span class="linenos">29</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Schema-30"><a href="#Schema-30"><span class="linenos">30</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Schema-31"><a href="#Schema-31"><span class="linenos">31</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema-32"><a href="#Schema-32"><span class="linenos">32</span></a><span class="sd"> Register or update a table. Some implementing classes may require column information to also be provided.</span> +</span><span id="Schema-33"><a href="#Schema-33"><span class="linenos">33</span></a> +</span><span id="Schema-34"><a href="#Schema-34"><span class="linenos">34</span></a><span class="sd"> Args:</span> +</span><span id="Schema-35"><a href="#Schema-35"><span class="linenos">35</span></a><span class="sd"> table: table expression instance or string representing the table.</span> +</span><span id="Schema-36"><a href="#Schema-36"><span class="linenos">36</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="Schema-37"><a href="#Schema-37"><span class="linenos">37</span></a><span class="sd"> """</span> +</span><span id="Schema-38"><a href="#Schema-38"><span class="linenos">38</span></a> +</span><span id="Schema-39"><a href="#Schema-39"><span class="linenos">39</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema-40"><a href="#Schema-40"><span class="linenos">40</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="Schema-41"><a href="#Schema-41"><span class="linenos">41</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema-42"><a href="#Schema-42"><span class="linenos">42</span></a><span class="sd"> Get the column names for a table.</span> +</span><span id="Schema-43"><a href="#Schema-43"><span class="linenos">43</span></a> +</span><span id="Schema-44"><a href="#Schema-44"><span class="linenos">44</span></a><span class="sd"> Args:</span> +</span><span id="Schema-45"><a href="#Schema-45"><span class="linenos">45</span></a><span class="sd"> table: the `Table` expression instance.</span> +</span><span id="Schema-46"><a href="#Schema-46"><span class="linenos">46</span></a><span class="sd"> only_visible: whether to include invisible columns.</span> +</span><span id="Schema-47"><a href="#Schema-47"><span class="linenos">47</span></a> +</span><span id="Schema-48"><a href="#Schema-48"><span class="linenos">48</span></a><span class="sd"> Returns:</span> +</span><span id="Schema-49"><a href="#Schema-49"><span class="linenos">49</span></a><span class="sd"> The list of column names.</span> +</span><span id="Schema-50"><a href="#Schema-50"><span class="linenos">50</span></a><span class="sd"> """</span> +</span><span id="Schema-51"><a href="#Schema-51"><span class="linenos">51</span></a> +</span><span id="Schema-52"><a href="#Schema-52"><span class="linenos">52</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema-53"><a href="#Schema-53"><span class="linenos">53</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="Schema-54"><a href="#Schema-54"><span class="linenos">54</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema-55"><a href="#Schema-55"><span class="linenos">55</span></a><span class="sd"> Get the :class:`sqlglot.exp.DataType` type of a column in the schema.</span> +</span><span id="Schema-56"><a href="#Schema-56"><span class="linenos">56</span></a> +</span><span id="Schema-57"><a href="#Schema-57"><span class="linenos">57</span></a><span class="sd"> Args:</span> +</span><span id="Schema-58"><a href="#Schema-58"><span class="linenos">58</span></a><span class="sd"> table: the source table.</span> +</span><span id="Schema-59"><a href="#Schema-59"><span class="linenos">59</span></a><span class="sd"> column: the target column.</span> +</span><span id="Schema-60"><a href="#Schema-60"><span class="linenos">60</span></a> +</span><span id="Schema-61"><a href="#Schema-61"><span class="linenos">61</span></a><span class="sd"> Returns:</span> +</span><span id="Schema-62"><a href="#Schema-62"><span class="linenos">62</span></a><span class="sd"> The resulting column type.</span> +</span><span id="Schema-63"><a href="#Schema-63"><span class="linenos">63</span></a><span class="sd"> """</span> +</span><span id="Schema-64"><a href="#Schema-64"><span class="linenos">64</span></a> +</span><span id="Schema-65"><a href="#Schema-65"><span class="linenos">65</span></a> <span class="nd">@property</span> +</span><span id="Schema-66"><a href="#Schema-66"><span class="linenos">66</span></a> <span class="k">def</span> <span class="nf">supported_table_args</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]:</span> +</span><span id="Schema-67"><a href="#Schema-67"><span class="linenos">67</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema-68"><a href="#Schema-68"><span class="linenos">68</span></a><span class="sd"> Table arguments this schema support, e.g. `("this", "db", "catalog")`</span> +</span><span id="Schema-69"><a href="#Schema-69"><span class="linenos">69</span></a><span class="sd"> """</span> +</span><span id="Schema-70"><a href="#Schema-70"><span class="linenos">70</span></a> <span class="k">raise</span> <span class="ne">NotImplementedError</span> +</span></pre></div> + + + <div class="docstring"><p>Abstract base class for database schemas</p> +</div> + + + <div id="Schema.add_table" class="classattr"> + <input id="Schema.add_table-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + <div class="decorator">@abc.abstractmethod</div> + + <span class="def">def</span> + <span class="name">add_table</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">dataframe</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">StructType</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span> + + <label class="view-source-button" for="Schema.add_table-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Schema.add_table"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Schema.add_table-27"><a href="#Schema.add_table-27"><span class="linenos">27</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema.add_table-28"><a href="#Schema.add_table-28"><span class="linenos">28</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="Schema.add_table-29"><a href="#Schema.add_table-29"><span class="linenos">29</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="Schema.add_table-30"><a href="#Schema.add_table-30"><span class="linenos">30</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="Schema.add_table-31"><a href="#Schema.add_table-31"><span class="linenos">31</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema.add_table-32"><a href="#Schema.add_table-32"><span class="linenos">32</span></a><span class="sd"> Register or update a table. Some implementing classes may require column information to also be provided.</span> +</span><span id="Schema.add_table-33"><a href="#Schema.add_table-33"><span class="linenos">33</span></a> +</span><span id="Schema.add_table-34"><a href="#Schema.add_table-34"><span class="linenos">34</span></a><span class="sd"> Args:</span> +</span><span id="Schema.add_table-35"><a href="#Schema.add_table-35"><span class="linenos">35</span></a><span class="sd"> table: table expression instance or string representing the table.</span> +</span><span id="Schema.add_table-36"><a href="#Schema.add_table-36"><span class="linenos">36</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="Schema.add_table-37"><a href="#Schema.add_table-37"><span class="linenos">37</span></a><span class="sd"> """</span> +</span></pre></div> + + + <div class="docstring"><p>Register or update a table. Some implementing classes may require column information to also be provided.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> table expression instance or string representing the table.</li> +<li><strong>column_mapping:</strong> a column mapping that describes the structure of the table.</li> +</ul> +</div> + + + </div> + <div id="Schema.column_names" class="classattr"> + <input id="Schema.column_names-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + <div class="decorator">@abc.abstractmethod</div> + + <span class="def">def</span> + <span class="name">column_names</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>:</span></span> + + <label class="view-source-button" for="Schema.column_names-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Schema.column_names"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Schema.column_names-39"><a href="#Schema.column_names-39"><span class="linenos">39</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema.column_names-40"><a href="#Schema.column_names-40"><span class="linenos">40</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="Schema.column_names-41"><a href="#Schema.column_names-41"><span class="linenos">41</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema.column_names-42"><a href="#Schema.column_names-42"><span class="linenos">42</span></a><span class="sd"> Get the column names for a table.</span> +</span><span id="Schema.column_names-43"><a href="#Schema.column_names-43"><span class="linenos">43</span></a> +</span><span id="Schema.column_names-44"><a href="#Schema.column_names-44"><span class="linenos">44</span></a><span class="sd"> Args:</span> +</span><span id="Schema.column_names-45"><a href="#Schema.column_names-45"><span class="linenos">45</span></a><span class="sd"> table: the `Table` expression instance.</span> +</span><span id="Schema.column_names-46"><a href="#Schema.column_names-46"><span class="linenos">46</span></a><span class="sd"> only_visible: whether to include invisible columns.</span> +</span><span id="Schema.column_names-47"><a href="#Schema.column_names-47"><span class="linenos">47</span></a> +</span><span id="Schema.column_names-48"><a href="#Schema.column_names-48"><span class="linenos">48</span></a><span class="sd"> Returns:</span> +</span><span id="Schema.column_names-49"><a href="#Schema.column_names-49"><span class="linenos">49</span></a><span class="sd"> The list of column names.</span> +</span><span id="Schema.column_names-50"><a href="#Schema.column_names-50"><span class="linenos">50</span></a><span class="sd"> """</span> +</span></pre></div> + + + <div class="docstring"><p>Get the column names for a table.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> the <code>Table</code> expression instance.</li> +<li><strong>only_visible:</strong> whether to include invisible columns.</li> +</ul> + +<h6 id="returns">Returns:</h6> + +<blockquote> + <p>The list of column names.</p> +</blockquote> +</div> + + + </div> + <div id="Schema.get_column_type" class="classattr"> + <input id="Schema.get_column_type-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + <div class="decorator">@abc.abstractmethod</div> + + <span class="def">def</span> + <span class="name">get_column_type</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n"><a href="expressions.html#Column">sqlglot.expressions.Column</a></span></span><span class="return-annotation">) -> <span class="n"><a href="expressions.html#DataType">sqlglot.expressions.DataType</a></span>:</span></span> + + <label class="view-source-button" for="Schema.get_column_type-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#Schema.get_column_type"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="Schema.get_column_type-52"><a href="#Schema.get_column_type-52"><span class="linenos">52</span></a> <span class="nd">@abc</span><span class="o">.</span><span class="n">abstractmethod</span> +</span><span id="Schema.get_column_type-53"><a href="#Schema.get_column_type-53"><span class="linenos">53</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="Schema.get_column_type-54"><a href="#Schema.get_column_type-54"><span class="linenos">54</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="Schema.get_column_type-55"><a href="#Schema.get_column_type-55"><span class="linenos">55</span></a><span class="sd"> Get the :class:`sqlglot.exp.DataType` type of a column in the schema.</span> +</span><span id="Schema.get_column_type-56"><a href="#Schema.get_column_type-56"><span class="linenos">56</span></a> +</span><span id="Schema.get_column_type-57"><a href="#Schema.get_column_type-57"><span class="linenos">57</span></a><span class="sd"> Args:</span> +</span><span id="Schema.get_column_type-58"><a href="#Schema.get_column_type-58"><span class="linenos">58</span></a><span class="sd"> table: the source table.</span> +</span><span id="Schema.get_column_type-59"><a href="#Schema.get_column_type-59"><span class="linenos">59</span></a><span class="sd"> column: the target column.</span> +</span><span id="Schema.get_column_type-60"><a href="#Schema.get_column_type-60"><span class="linenos">60</span></a> +</span><span id="Schema.get_column_type-61"><a href="#Schema.get_column_type-61"><span class="linenos">61</span></a><span class="sd"> Returns:</span> +</span><span id="Schema.get_column_type-62"><a href="#Schema.get_column_type-62"><span class="linenos">62</span></a><span class="sd"> The resulting column type.</span> +</span><span id="Schema.get_column_type-63"><a href="#Schema.get_column_type-63"><span class="linenos">63</span></a><span class="sd"> """</span> +</span></pre></div> + + + <div class="docstring"><p>Get the <code>sqlglot.exp.DataType</code> type of a column in the schema.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> the source table.</li> +<li><strong>column:</strong> the target column.</li> +</ul> + +<h6 id="returns">Returns:</h6> + +<blockquote> + <p>The resulting column type.</p> +</blockquote> +</div> + + + </div> + <div id="Schema.supported_table_args" class="classattr"> + <div class="attr variable"> + <span class="name">supported_table_args</span><span class="annotation">: Tuple[str, ...]</span> + + + </div> + <a class="headerlink" href="#Schema.supported_table_args"></a> + + <div class="docstring"><p>Table arguments this schema support, e.g. <code>("this", "db", "catalog")</code></p> +</div> + + + </div> + </section> + <section id="AbstractMappingSchema"> + <input id="AbstractMappingSchema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">AbstractMappingSchema</span><wbr>(<span class="base">typing.Generic[~T]</span>): + + <label class="view-source-button" for="AbstractMappingSchema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#AbstractMappingSchema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="AbstractMappingSchema-73"><a href="#AbstractMappingSchema-73"><span class="linenos"> 73</span></a><span class="k">class</span> <span class="nc">AbstractMappingSchema</span><span class="p">(</span><span class="n">t</span><span class="o">.</span><span class="n">Generic</span><span class="p">[</span><span class="n">T</span><span class="p">]):</span> +</span><span id="AbstractMappingSchema-74"><a href="#AbstractMappingSchema-74"><span class="linenos"> 74</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="AbstractMappingSchema-75"><a href="#AbstractMappingSchema-75"><span class="linenos"> 75</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="AbstractMappingSchema-76"><a href="#AbstractMappingSchema-76"><span class="linenos"> 76</span></a> <span class="n">mapping</span><span class="p">:</span> <span class="nb">dict</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="AbstractMappingSchema-77"><a href="#AbstractMappingSchema-77"><span class="linenos"> 77</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-78"><a href="#AbstractMappingSchema-78"><span class="linenos"> 78</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span> <span class="o">=</span> <span class="n">mapping</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="AbstractMappingSchema-79"><a href="#AbstractMappingSchema-79"><span class="linenos"> 79</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-80"><a href="#AbstractMappingSchema-80"><span class="linenos"> 80</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="AbstractMappingSchema-81"><a href="#AbstractMappingSchema-81"><span class="linenos"> 81</span></a> +</span><span id="AbstractMappingSchema-82"><a href="#AbstractMappingSchema-82"><span class="linenos"> 82</span></a> <span class="k">def</span> <span class="nf">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-83"><a href="#AbstractMappingSchema-83"><span class="linenos"> 83</span></a> <span class="k">return</span> <span class="n">new_trie</span><span class="p">(</span><span class="nb">tuple</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="n">t</span><span class="p">))</span> <span class="k">for</span> <span class="n">t</span> <span class="ow">in</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_depth</span><span class="p">()))</span> +</span><span id="AbstractMappingSchema-84"><a href="#AbstractMappingSchema-84"><span class="linenos"> 84</span></a> +</span><span id="AbstractMappingSchema-85"><a href="#AbstractMappingSchema-85"><span class="linenos"> 85</span></a> <span class="k">def</span> <span class="nf">_depth</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-86"><a href="#AbstractMappingSchema-86"><span class="linenos"> 86</span></a> <span class="k">return</span> <span class="n">dict_depth</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-87"><a href="#AbstractMappingSchema-87"><span class="linenos"> 87</span></a> +</span><span id="AbstractMappingSchema-88"><a href="#AbstractMappingSchema-88"><span class="linenos"> 88</span></a> <span class="nd">@property</span> +</span><span id="AbstractMappingSchema-89"><a href="#AbstractMappingSchema-89"><span class="linenos"> 89</span></a> <span class="k">def</span> <span class="nf">supported_table_args</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema-90"><a href="#AbstractMappingSchema-90"><span class="linenos"> 90</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-91"><a href="#AbstractMappingSchema-91"><span class="linenos"> 91</span></a> <span class="n">depth</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_depth</span><span class="p">()</span> +</span><span id="AbstractMappingSchema-92"><a href="#AbstractMappingSchema-92"><span class="linenos"> 92</span></a> +</span><span id="AbstractMappingSchema-93"><a href="#AbstractMappingSchema-93"><span class="linenos"> 93</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">depth</span><span class="p">:</span> <span class="c1"># None</span> +</span><span id="AbstractMappingSchema-94"><a href="#AbstractMappingSchema-94"><span class="linenos"> 94</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">()</span> +</span><span id="AbstractMappingSchema-95"><a href="#AbstractMappingSchema-95"><span class="linenos"> 95</span></a> <span class="k">elif</span> <span class="mi">1</span> <span class="o"><=</span> <span class="n">depth</span> <span class="o"><=</span> <span class="mi">3</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-96"><a href="#AbstractMappingSchema-96"><span class="linenos"> 96</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> <span class="o">=</span> <span class="n">TABLE_ARGS</span><span class="p">[:</span><span class="n">depth</span><span class="p">]</span> +</span><span id="AbstractMappingSchema-97"><a href="#AbstractMappingSchema-97"><span class="linenos"> 97</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-98"><a href="#AbstractMappingSchema-98"><span class="linenos"> 98</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Invalid mapping shape. Depth: </span><span class="si">{</span><span class="n">depth</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-99"><a href="#AbstractMappingSchema-99"><span class="linenos"> 99</span></a> +</span><span id="AbstractMappingSchema-100"><a href="#AbstractMappingSchema-100"><span class="linenos">100</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span> +</span><span id="AbstractMappingSchema-101"><a href="#AbstractMappingSchema-101"><span class="linenos">101</span></a> +</span><span id="AbstractMappingSchema-102"><a href="#AbstractMappingSchema-102"><span class="linenos">102</span></a> <span class="k">def</span> <span class="nf">table_parts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema-103"><a href="#AbstractMappingSchema-103"><span class="linenos">103</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="AbstractMappingSchema-104"><a href="#AbstractMappingSchema-104"><span class="linenos">104</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> +</span><span id="AbstractMappingSchema-105"><a href="#AbstractMappingSchema-105"><span class="linenos">105</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)</span> <span class="k">for</span> <span class="n">part</span> <span class="ow">in</span> <span class="n">TABLE_ARGS</span> <span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)]</span> +</span><span id="AbstractMappingSchema-106"><a href="#AbstractMappingSchema-106"><span class="linenos">106</span></a> +</span><span id="AbstractMappingSchema-107"><a href="#AbstractMappingSchema-107"><span class="linenos">107</span></a> <span class="k">def</span> <span class="nf">find</span><span class="p">(</span> +</span><span id="AbstractMappingSchema-108"><a href="#AbstractMappingSchema-108"><span class="linenos">108</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">,</span> <span class="n">trie</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="AbstractMappingSchema-109"><a href="#AbstractMappingSchema-109"><span class="linenos">109</span></a> <span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">T</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema-110"><a href="#AbstractMappingSchema-110"><span class="linenos">110</span></a> <span class="n">parts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table</span><span class="p">)[</span><span class="mi">0</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">supported_table_args</span><span class="p">)]</span> +</span><span id="AbstractMappingSchema-111"><a href="#AbstractMappingSchema-111"><span class="linenos">111</span></a> <span class="n">value</span><span class="p">,</span> <span class="n">trie</span> <span class="o">=</span> <span class="n">in_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="k">if</span> <span class="n">trie</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">trie</span><span class="p">,</span> <span class="n">parts</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-112"><a href="#AbstractMappingSchema-112"><span class="linenos">112</span></a> +</span><span id="AbstractMappingSchema-113"><a href="#AbstractMappingSchema-113"><span class="linenos">113</span></a> <span class="k">if</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-114"><a href="#AbstractMappingSchema-114"><span class="linenos">114</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="AbstractMappingSchema-115"><a href="#AbstractMappingSchema-115"><span class="linenos">115</span></a> <span class="k">elif</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-116"><a href="#AbstractMappingSchema-116"><span class="linenos">116</span></a> <span class="n">possibilities</span> <span class="o">=</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">trie</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="n">dict_depth</span><span class="p">(</span><span class="n">trie</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-117"><a href="#AbstractMappingSchema-117"><span class="linenos">117</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">possibilities</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-118"><a href="#AbstractMappingSchema-118"><span class="linenos">118</span></a> <span class="n">parts</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">possibilities</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> +</span><span id="AbstractMappingSchema-119"><a href="#AbstractMappingSchema-119"><span class="linenos">119</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-120"><a href="#AbstractMappingSchema-120"><span class="linenos">120</span></a> <span class="n">message</span> <span class="o">=</span> <span class="s2">", "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">"."</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span> <span class="k">for</span> <span class="n">parts</span> <span class="ow">in</span> <span class="n">possibilities</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-121"><a href="#AbstractMappingSchema-121"><span class="linenos">121</span></a> <span class="k">if</span> <span class="n">raise_on_missing</span><span class="p">:</span> +</span><span id="AbstractMappingSchema-122"><a href="#AbstractMappingSchema-122"><span class="linenos">122</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Ambiguous mapping for </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">: </span><span class="si">{</span><span class="n">message</span><span class="si">}</span><span class="s2">."</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-123"><a href="#AbstractMappingSchema-123"><span class="linenos">123</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="AbstractMappingSchema-124"><a href="#AbstractMappingSchema-124"><span class="linenos">124</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="n">parts</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="n">raise_on_missing</span><span class="p">)</span> +</span><span id="AbstractMappingSchema-125"><a href="#AbstractMappingSchema-125"><span class="linenos">125</span></a> +</span><span id="AbstractMappingSchema-126"><a href="#AbstractMappingSchema-126"><span class="linenos">126</span></a> <span class="k">def</span> <span class="nf">_nested_get</span><span class="p">(</span> +</span><span id="AbstractMappingSchema-127"><a href="#AbstractMappingSchema-127"><span class="linenos">127</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">parts</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Sequence</span><span class="p">[</span><span class="nb">str</span><span class="p">],</span> <span class="n">d</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">True</span> +</span><span id="AbstractMappingSchema-128"><a href="#AbstractMappingSchema-128"><span class="linenos">128</span></a> <span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema-129"><a href="#AbstractMappingSchema-129"><span class="linenos">129</span></a> <span class="k">return</span> <span class="n">_nested_get</span><span class="p">(</span> +</span><span id="AbstractMappingSchema-130"><a href="#AbstractMappingSchema-130"><span class="linenos">130</span></a> <span class="n">d</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="AbstractMappingSchema-131"><a href="#AbstractMappingSchema-131"><span class="linenos">131</span></a> <span class="o">*</span><span class="nb">zip</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">supported_table_args</span><span class="p">,</span> <span class="nb">reversed</span><span class="p">(</span><span class="n">parts</span><span class="p">)),</span> +</span><span id="AbstractMappingSchema-132"><a href="#AbstractMappingSchema-132"><span class="linenos">132</span></a> <span class="n">raise_on_missing</span><span class="o">=</span><span class="n">raise_on_missing</span><span class="p">,</span> +</span><span id="AbstractMappingSchema-133"><a href="#AbstractMappingSchema-133"><span class="linenos">133</span></a> <span class="p">)</span> +</span></pre></div> + + + <div class="docstring"><p>Abstract base class for generic types.</p> + +<p>A generic type is typically declared by inheriting from +this class parameterized with one or more type variables. +For example, a generic mapping type might be defined as::</p> + +<p>class Mapping(Generic[KT, VT]): + def __getitem__(self, key: KT) -> VT: + ... + # Etc.</p> + +<p>This class can then be used as follows::</p> + +<p>def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT: + try: + return mapping[key] + except KeyError: + return default</p> +</div> + + + <div id="AbstractMappingSchema.__init__" class="classattr"> + <input id="AbstractMappingSchema.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="name">AbstractMappingSchema</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">mapping</span><span class="p">:</span> <span class="nb">dict</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span></span>)</span> + + <label class="view-source-button" for="AbstractMappingSchema.__init__-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#AbstractMappingSchema.__init__"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="AbstractMappingSchema.__init__-74"><a href="#AbstractMappingSchema.__init__-74"><span class="linenos">74</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="AbstractMappingSchema.__init__-75"><a href="#AbstractMappingSchema.__init__-75"><span class="linenos">75</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="AbstractMappingSchema.__init__-76"><a href="#AbstractMappingSchema.__init__-76"><span class="linenos">76</span></a> <span class="n">mapping</span><span class="p">:</span> <span class="nb">dict</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="AbstractMappingSchema.__init__-77"><a href="#AbstractMappingSchema.__init__-77"><span class="linenos">77</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.__init__-78"><a href="#AbstractMappingSchema.__init__-78"><span class="linenos">78</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span> <span class="o">=</span> <span class="n">mapping</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="AbstractMappingSchema.__init__-79"><a href="#AbstractMappingSchema.__init__-79"><span class="linenos">79</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="AbstractMappingSchema.__init__-80"><a href="#AbstractMappingSchema.__init__-80"><span class="linenos">80</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_supported_table_args</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Tuple</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="o">...</span><span class="p">]</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">()</span> +</span></pre></div> + + + + + </div> + <div id="AbstractMappingSchema.table_parts" class="classattr"> + <input id="AbstractMappingSchema.table_parts-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">table_parts</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>:</span></span> + + <label class="view-source-button" for="AbstractMappingSchema.table_parts-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#AbstractMappingSchema.table_parts"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="AbstractMappingSchema.table_parts-102"><a href="#AbstractMappingSchema.table_parts-102"><span class="linenos">102</span></a> <span class="k">def</span> <span class="nf">table_parts</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema.table_parts-103"><a href="#AbstractMappingSchema.table_parts-103"><span class="linenos">103</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">ReadCSV</span><span class="p">):</span> +</span><span id="AbstractMappingSchema.table_parts-104"><a href="#AbstractMappingSchema.table_parts-104"><span class="linenos">104</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">this</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> +</span><span id="AbstractMappingSchema.table_parts-105"><a href="#AbstractMappingSchema.table_parts-105"><span class="linenos">105</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)</span> <span class="k">for</span> <span class="n">part</span> <span class="ow">in</span> <span class="n">TABLE_ARGS</span> <span class="k">if</span> <span class="n">table</span><span class="o">.</span><span class="n">text</span><span class="p">(</span><span class="n">part</span><span class="p">)]</span> +</span></pre></div> + + + + + </div> + <div id="AbstractMappingSchema.find" class="classattr"> + <input id="AbstractMappingSchema.find-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">find</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span>,</span><span class="param"> <span class="n">trie</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">raise_on_missing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span></span><span class="return-annotation">) -> <span class="n">Optional</span><span class="p">[</span><span class="o">~</span><span class="n">T</span><span class="p">]</span>:</span></span> + + <label class="view-source-button" for="AbstractMappingSchema.find-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#AbstractMappingSchema.find"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="AbstractMappingSchema.find-107"><a href="#AbstractMappingSchema.find-107"><span class="linenos">107</span></a> <span class="k">def</span> <span class="nf">find</span><span class="p">(</span> +</span><span id="AbstractMappingSchema.find-108"><a href="#AbstractMappingSchema.find-108"><span class="linenos">108</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">,</span> <span class="n">trie</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> +</span><span id="AbstractMappingSchema.find-109"><a href="#AbstractMappingSchema.find-109"><span class="linenos">109</span></a> <span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">T</span><span class="p">]:</span> +</span><span id="AbstractMappingSchema.find-110"><a href="#AbstractMappingSchema.find-110"><span class="linenos">110</span></a> <span class="n">parts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table</span><span class="p">)[</span><span class="mi">0</span> <span class="p">:</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">supported_table_args</span><span class="p">)]</span> +</span><span id="AbstractMappingSchema.find-111"><a href="#AbstractMappingSchema.find-111"><span class="linenos">111</span></a> <span class="n">value</span><span class="p">,</span> <span class="n">trie</span> <span class="o">=</span> <span class="n">in_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="k">if</span> <span class="n">trie</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">trie</span><span class="p">,</span> <span class="n">parts</span><span class="p">)</span> +</span><span id="AbstractMappingSchema.find-112"><a href="#AbstractMappingSchema.find-112"><span class="linenos">112</span></a> +</span><span id="AbstractMappingSchema.find-113"><a href="#AbstractMappingSchema.find-113"><span class="linenos">113</span></a> <span class="k">if</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.find-114"><a href="#AbstractMappingSchema.find-114"><span class="linenos">114</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="AbstractMappingSchema.find-115"><a href="#AbstractMappingSchema.find-115"><span class="linenos">115</span></a> <span class="k">elif</span> <span class="n">value</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.find-116"><a href="#AbstractMappingSchema.find-116"><span class="linenos">116</span></a> <span class="n">possibilities</span> <span class="o">=</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">trie</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="n">dict_depth</span><span class="p">(</span><span class="n">trie</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="AbstractMappingSchema.find-117"><a href="#AbstractMappingSchema.find-117"><span class="linenos">117</span></a> <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">possibilities</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.find-118"><a href="#AbstractMappingSchema.find-118"><span class="linenos">118</span></a> <span class="n">parts</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">possibilities</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> +</span><span id="AbstractMappingSchema.find-119"><a href="#AbstractMappingSchema.find-119"><span class="linenos">119</span></a> <span class="k">else</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.find-120"><a href="#AbstractMappingSchema.find-120"><span class="linenos">120</span></a> <span class="n">message</span> <span class="o">=</span> <span class="s2">", "</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">"."</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">parts</span><span class="p">)</span> <span class="k">for</span> <span class="n">parts</span> <span class="ow">in</span> <span class="n">possibilities</span><span class="p">)</span> +</span><span id="AbstractMappingSchema.find-121"><a href="#AbstractMappingSchema.find-121"><span class="linenos">121</span></a> <span class="k">if</span> <span class="n">raise_on_missing</span><span class="p">:</span> +</span><span id="AbstractMappingSchema.find-122"><a href="#AbstractMappingSchema.find-122"><span class="linenos">122</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Ambiguous mapping for </span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">: </span><span class="si">{</span><span class="n">message</span><span class="si">}</span><span class="s2">."</span><span class="p">)</span> +</span><span id="AbstractMappingSchema.find-123"><a href="#AbstractMappingSchema.find-123"><span class="linenos">123</span></a> <span class="k">return</span> <span class="kc">None</span> +</span><span id="AbstractMappingSchema.find-124"><a href="#AbstractMappingSchema.find-124"><span class="linenos">124</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="n">parts</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="n">raise_on_missing</span><span class="p">)</span> +</span></pre></div> + + + + + </div> + </section> + <section id="MappingSchema"> + <input id="MappingSchema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr class"> + + <span class="def">class</span> + <span class="name">MappingSchema</span><wbr>(<span class="base"><a href="#AbstractMappingSchema">sqlglot.schema.AbstractMappingSchema[typing.Dict[str, str]]</a></span>, <span class="base"><a href="#Schema">Schema</a></span>): + + <label class="view-source-button" for="MappingSchema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema-136"><a href="#MappingSchema-136"><span class="linenos">136</span></a><span class="k">class</span> <span class="nc">MappingSchema</span><span class="p">(</span><span class="n">AbstractMappingSchema</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="nb">str</span><span class="p">]],</span> <span class="n">Schema</span><span class="p">):</span> +</span><span id="MappingSchema-137"><a href="#MappingSchema-137"><span class="linenos">137</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="MappingSchema-138"><a href="#MappingSchema-138"><span class="linenos">138</span></a><span class="sd"> Schema based on a nested mapping.</span> +</span><span id="MappingSchema-139"><a href="#MappingSchema-139"><span class="linenos">139</span></a> +</span><span id="MappingSchema-140"><a href="#MappingSchema-140"><span class="linenos">140</span></a><span class="sd"> Args:</span> +</span><span id="MappingSchema-141"><a href="#MappingSchema-141"><span class="linenos">141</span></a><span class="sd"> schema (dict): Mapping in one of the following forms:</span> +</span><span id="MappingSchema-142"><a href="#MappingSchema-142"><span class="linenos">142</span></a><span class="sd"> 1. {table: {col: type}}</span> +</span><span id="MappingSchema-143"><a href="#MappingSchema-143"><span class="linenos">143</span></a><span class="sd"> 2. {db: {table: {col: type}}}</span> +</span><span id="MappingSchema-144"><a href="#MappingSchema-144"><span class="linenos">144</span></a><span class="sd"> 3. {catalog: {db: {table: {col: type}}}}</span> +</span><span id="MappingSchema-145"><a href="#MappingSchema-145"><span class="linenos">145</span></a><span class="sd"> 4. None - Tables will be added later</span> +</span><span id="MappingSchema-146"><a href="#MappingSchema-146"><span class="linenos">146</span></a><span class="sd"> visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns</span> +</span><span id="MappingSchema-147"><a href="#MappingSchema-147"><span class="linenos">147</span></a><span class="sd"> are assumed to be visible. The nesting should mirror that of the schema:</span> +</span><span id="MappingSchema-148"><a href="#MappingSchema-148"><span class="linenos">148</span></a><span class="sd"> 1. {table: set(*cols)}}</span> +</span><span id="MappingSchema-149"><a href="#MappingSchema-149"><span class="linenos">149</span></a><span class="sd"> 2. {db: {table: set(*cols)}}}</span> +</span><span id="MappingSchema-150"><a href="#MappingSchema-150"><span class="linenos">150</span></a><span class="sd"> 3. {catalog: {db: {table: set(*cols)}}}}</span> +</span><span id="MappingSchema-151"><a href="#MappingSchema-151"><span class="linenos">151</span></a><span class="sd"> dialect (str): The dialect to be used for custom type mappings.</span> +</span><span id="MappingSchema-152"><a href="#MappingSchema-152"><span class="linenos">152</span></a><span class="sd"> """</span> +</span><span id="MappingSchema-153"><a href="#MappingSchema-153"><span class="linenos">153</span></a> +</span><span id="MappingSchema-154"><a href="#MappingSchema-154"><span class="linenos">154</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="MappingSchema-155"><a href="#MappingSchema-155"><span class="linenos">155</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="MappingSchema-156"><a href="#MappingSchema-156"><span class="linenos">156</span></a> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema-157"><a href="#MappingSchema-157"><span class="linenos">157</span></a> <span class="n">visible</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema-158"><a href="#MappingSchema-158"><span class="linenos">158</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">DialectType</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema-159"><a href="#MappingSchema-159"><span class="linenos">159</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema-160"><a href="#MappingSchema-160"><span class="linenos">160</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span> <span class="o">=</span> <span class="n">dialect</span> +</span><span id="MappingSchema-161"><a href="#MappingSchema-161"><span class="linenos">161</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span> <span class="o">=</span> <span class="n">visible</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="MappingSchema-162"><a href="#MappingSchema-162"><span class="linenos">162</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="MappingSchema-163"><a href="#MappingSchema-163"><span class="linenos">163</span></a> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize</span><span class="p">(</span><span class="n">schema</span> <span class="ow">or</span> <span class="p">{}))</span> +</span><span id="MappingSchema-164"><a href="#MappingSchema-164"><span class="linenos">164</span></a> +</span><span id="MappingSchema-165"><a href="#MappingSchema-165"><span class="linenos">165</span></a> <span class="nd">@classmethod</span> +</span><span id="MappingSchema-166"><a href="#MappingSchema-166"><span class="linenos">166</span></a> <span class="k">def</span> <span class="nf">from_mapping_schema</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">mapping_schema</span><span class="p">:</span> <span class="n">MappingSchema</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="MappingSchema-167"><a href="#MappingSchema-167"><span class="linenos">167</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="MappingSchema-168"><a href="#MappingSchema-168"><span class="linenos">168</span></a> <span class="n">schema</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="MappingSchema-169"><a href="#MappingSchema-169"><span class="linenos">169</span></a> <span class="n">visible</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">visible</span><span class="p">,</span> +</span><span id="MappingSchema-170"><a href="#MappingSchema-170"><span class="linenos">170</span></a> <span class="n">dialect</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="MappingSchema-171"><a href="#MappingSchema-171"><span class="linenos">171</span></a> <span class="p">)</span> +</span><span id="MappingSchema-172"><a href="#MappingSchema-172"><span class="linenos">172</span></a> +</span><span id="MappingSchema-173"><a href="#MappingSchema-173"><span class="linenos">173</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="MappingSchema-174"><a href="#MappingSchema-174"><span class="linenos">174</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="MappingSchema-175"><a href="#MappingSchema-175"><span class="linenos">175</span></a> <span class="o">**</span><span class="p">{</span> <span class="c1"># type: ignore</span> +</span><span id="MappingSchema-176"><a href="#MappingSchema-176"><span class="linenos">176</span></a> <span class="s2">"schema"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="MappingSchema-177"><a href="#MappingSchema-177"><span class="linenos">177</span></a> <span class="s2">"visible"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="MappingSchema-178"><a href="#MappingSchema-178"><span class="linenos">178</span></a> <span class="s2">"dialect"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="MappingSchema-179"><a href="#MappingSchema-179"><span class="linenos">179</span></a> <span class="o">**</span><span class="n">kwargs</span><span class="p">,</span> +</span><span id="MappingSchema-180"><a href="#MappingSchema-180"><span class="linenos">180</span></a> <span class="p">}</span> +</span><span id="MappingSchema-181"><a href="#MappingSchema-181"><span class="linenos">181</span></a> <span class="p">)</span> +</span><span id="MappingSchema-182"><a href="#MappingSchema-182"><span class="linenos">182</span></a> +</span><span id="MappingSchema-183"><a href="#MappingSchema-183"><span class="linenos">183</span></a> <span class="k">def</span> <span class="nf">_normalize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">:</span> +</span><span id="MappingSchema-184"><a href="#MappingSchema-184"><span class="linenos">184</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="MappingSchema-185"><a href="#MappingSchema-185"><span class="linenos">185</span></a><span class="sd"> Converts all identifiers in the schema into lowercase, unless they're quoted.</span> +</span><span id="MappingSchema-186"><a href="#MappingSchema-186"><span class="linenos">186</span></a> +</span><span id="MappingSchema-187"><a href="#MappingSchema-187"><span class="linenos">187</span></a><span class="sd"> Args:</span> +</span><span id="MappingSchema-188"><a href="#MappingSchema-188"><span class="linenos">188</span></a><span class="sd"> schema: the schema to normalize.</span> +</span><span id="MappingSchema-189"><a href="#MappingSchema-189"><span class="linenos">189</span></a> +</span><span id="MappingSchema-190"><a href="#MappingSchema-190"><span class="linenos">190</span></a><span class="sd"> Returns:</span> +</span><span id="MappingSchema-191"><a href="#MappingSchema-191"><span class="linenos">191</span></a><span class="sd"> The normalized schema mapping.</span> +</span><span id="MappingSchema-192"><a href="#MappingSchema-192"><span class="linenos">192</span></a><span class="sd"> """</span> +</span><span id="MappingSchema-193"><a href="#MappingSchema-193"><span class="linenos">193</span></a> <span class="n">flattened_schema</span> <span class="o">=</span> <span class="n">flatten_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="n">dict_depth</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> +</span><span id="MappingSchema-194"><a href="#MappingSchema-194"><span class="linenos">194</span></a> +</span><span id="MappingSchema-195"><a href="#MappingSchema-195"><span class="linenos">195</span></a> <span class="n">normalized_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="MappingSchema-196"><a href="#MappingSchema-196"><span class="linenos">196</span></a> <span class="k">for</span> <span class="n">keys</span> <span class="ow">in</span> <span class="n">flattened_schema</span><span class="p">:</span> +</span><span id="MappingSchema-197"><a href="#MappingSchema-197"><span class="linenos">197</span></a> <span class="n">columns</span> <span class="o">=</span> <span class="n">_nested_get</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="o">*</span><span class="nb">zip</span><span class="p">(</span><span class="n">keys</span><span class="p">,</span> <span class="n">keys</span><span class="p">))</span> +</span><span id="MappingSchema-198"><a href="#MappingSchema-198"><span class="linenos">198</span></a> <span class="k">assert</span> <span class="n">columns</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> +</span><span id="MappingSchema-199"><a href="#MappingSchema-199"><span class="linenos">199</span></a> +</span><span id="MappingSchema-200"><a href="#MappingSchema-200"><span class="linenos">200</span></a> <span class="n">normalized_keys</span> <span class="o">=</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize_name</span><span class="p">(</span><span class="n">key</span><span class="p">)</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">keys</span><span class="p">]</span> +</span><span id="MappingSchema-201"><a href="#MappingSchema-201"><span class="linenos">201</span></a> <span class="k">for</span> <span class="n">column_name</span><span class="p">,</span> <span class="n">column_type</span> <span class="ow">in</span> <span class="n">columns</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="MappingSchema-202"><a href="#MappingSchema-202"><span class="linenos">202</span></a> <span class="n">_nested_set</span><span class="p">(</span> +</span><span id="MappingSchema-203"><a href="#MappingSchema-203"><span class="linenos">203</span></a> <span class="n">normalized_mapping</span><span class="p">,</span> +</span><span id="MappingSchema-204"><a href="#MappingSchema-204"><span class="linenos">204</span></a> <span class="n">normalized_keys</span> <span class="o">+</span> <span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize_name</span><span class="p">(</span><span class="n">column_name</span><span class="p">)],</span> +</span><span id="MappingSchema-205"><a href="#MappingSchema-205"><span class="linenos">205</span></a> <span class="n">column_type</span><span class="p">,</span> +</span><span id="MappingSchema-206"><a href="#MappingSchema-206"><span class="linenos">206</span></a> <span class="p">)</span> +</span><span id="MappingSchema-207"><a href="#MappingSchema-207"><span class="linenos">207</span></a> +</span><span id="MappingSchema-208"><a href="#MappingSchema-208"><span class="linenos">208</span></a> <span class="k">return</span> <span class="n">normalized_mapping</span> +</span><span id="MappingSchema-209"><a href="#MappingSchema-209"><span class="linenos">209</span></a> +</span><span id="MappingSchema-210"><a href="#MappingSchema-210"><span class="linenos">210</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="MappingSchema-211"><a href="#MappingSchema-211"><span class="linenos">211</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="MappingSchema-212"><a href="#MappingSchema-212"><span class="linenos">212</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema-213"><a href="#MappingSchema-213"><span class="linenos">213</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="MappingSchema-214"><a href="#MappingSchema-214"><span class="linenos">214</span></a><span class="sd"> Register or update a table. Updates are only performed if a new column mapping is provided.</span> +</span><span id="MappingSchema-215"><a href="#MappingSchema-215"><span class="linenos">215</span></a> +</span><span id="MappingSchema-216"><a href="#MappingSchema-216"><span class="linenos">216</span></a><span class="sd"> Args:</span> +</span><span id="MappingSchema-217"><a href="#MappingSchema-217"><span class="linenos">217</span></a><span class="sd"> table: the `Table` expression instance or string representing the table.</span> +</span><span id="MappingSchema-218"><a href="#MappingSchema-218"><span class="linenos">218</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="MappingSchema-219"><a href="#MappingSchema-219"><span class="linenos">219</span></a><span class="sd"> """</span> +</span><span id="MappingSchema-220"><a href="#MappingSchema-220"><span class="linenos">220</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema-221"><a href="#MappingSchema-221"><span class="linenos">221</span></a> <span class="n">column_mapping</span> <span class="o">=</span> <span class="n">ensure_column_mapping</span><span class="p">(</span><span class="n">column_mapping</span><span class="p">)</span> +</span><span id="MappingSchema-222"><a href="#MappingSchema-222"><span class="linenos">222</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="MappingSchema-223"><a href="#MappingSchema-223"><span class="linenos">223</span></a> +</span><span id="MappingSchema-224"><a href="#MappingSchema-224"><span class="linenos">224</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">column_mapping</span><span class="p">:</span> +</span><span id="MappingSchema-225"><a href="#MappingSchema-225"><span class="linenos">225</span></a> <span class="k">return</span> +</span><span id="MappingSchema-226"><a href="#MappingSchema-226"><span class="linenos">226</span></a> +</span><span id="MappingSchema-227"><a href="#MappingSchema-227"><span class="linenos">227</span></a> <span class="n">_nested_set</span><span class="p">(</span> +</span><span id="MappingSchema-228"><a href="#MappingSchema-228"><span class="linenos">228</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="MappingSchema-229"><a href="#MappingSchema-229"><span class="linenos">229</span></a> <span class="nb">list</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">))),</span> +</span><span id="MappingSchema-230"><a href="#MappingSchema-230"><span class="linenos">230</span></a> <span class="n">column_mapping</span><span class="p">,</span> +</span><span id="MappingSchema-231"><a href="#MappingSchema-231"><span class="linenos">231</span></a> <span class="p">)</span> +</span><span id="MappingSchema-232"><a href="#MappingSchema-232"><span class="linenos">232</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span><span id="MappingSchema-233"><a href="#MappingSchema-233"><span class="linenos">233</span></a> +</span><span id="MappingSchema-234"><a href="#MappingSchema-234"><span class="linenos">234</span></a> <span class="k">def</span> <span class="nf">_normalize_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span> +</span><span id="MappingSchema-235"><a href="#MappingSchema-235"><span class="linenos">235</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="MappingSchema-236"><a href="#MappingSchema-236"><span class="linenos">236</span></a> <span class="n">identifier</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">exp</span><span class="o">.</span><span class="n">Expression</span><span class="p">]</span> <span class="o">=</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">parse_one</span><span class="p">(</span> +</span><span id="MappingSchema-237"><a href="#MappingSchema-237"><span class="linenos">237</span></a> <span class="n">name</span><span class="p">,</span> <span class="n">read</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> <span class="n">into</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span> +</span><span id="MappingSchema-238"><a href="#MappingSchema-238"><span class="linenos">238</span></a> <span class="p">)</span> +</span><span id="MappingSchema-239"><a href="#MappingSchema-239"><span class="linenos">239</span></a> <span class="k">except</span><span class="p">:</span> +</span><span id="MappingSchema-240"><a href="#MappingSchema-240"><span class="linenos">240</span></a> <span class="n">identifier</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_identifier</span><span class="p">(</span><span class="n">name</span><span class="p">)</span> +</span><span id="MappingSchema-241"><a href="#MappingSchema-241"><span class="linenos">241</span></a> <span class="k">assert</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">identifier</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">Identifier</span><span class="p">)</span> +</span><span id="MappingSchema-242"><a href="#MappingSchema-242"><span class="linenos">242</span></a> +</span><span id="MappingSchema-243"><a href="#MappingSchema-243"><span class="linenos">243</span></a> <span class="k">if</span> <span class="n">identifier</span><span class="o">.</span><span class="n">quoted</span><span class="p">:</span> +</span><span id="MappingSchema-244"><a href="#MappingSchema-244"><span class="linenos">244</span></a> <span class="k">return</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span> +</span><span id="MappingSchema-245"><a href="#MappingSchema-245"><span class="linenos">245</span></a> <span class="k">return</span> <span class="n">identifier</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> +</span><span id="MappingSchema-246"><a href="#MappingSchema-246"><span class="linenos">246</span></a> +</span><span id="MappingSchema-247"><a href="#MappingSchema-247"><span class="linenos">247</span></a> <span class="k">def</span> <span class="nf">_depth</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">int</span><span class="p">:</span> +</span><span id="MappingSchema-248"><a href="#MappingSchema-248"><span class="linenos">248</span></a> <span class="c1"># The columns themselves are a mapping, but we don't want to include those</span> +</span><span id="MappingSchema-249"><a href="#MappingSchema-249"><span class="linenos">249</span></a> <span class="k">return</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_depth</span><span class="p">()</span> <span class="o">-</span> <span class="mi">1</span> +</span><span id="MappingSchema-250"><a href="#MappingSchema-250"><span class="linenos">250</span></a> +</span><span id="MappingSchema-251"><a href="#MappingSchema-251"><span class="linenos">251</span></a> <span class="k">def</span> <span class="nf">_ensure_table</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span><span class="p">:</span> +</span><span id="MappingSchema-252"><a href="#MappingSchema-252"><span class="linenos">252</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema-253"><a href="#MappingSchema-253"><span class="linenos">253</span></a> +</span><span id="MappingSchema-254"><a href="#MappingSchema-254"><span class="linenos">254</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">table_</span><span class="p">:</span> +</span><span id="MappingSchema-255"><a href="#MappingSchema-255"><span class="linenos">255</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Not a valid table '</span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="MappingSchema-256"><a href="#MappingSchema-256"><span class="linenos">256</span></a> +</span><span id="MappingSchema-257"><a href="#MappingSchema-257"><span class="linenos">257</span></a> <span class="k">return</span> <span class="n">table_</span> +</span><span id="MappingSchema-258"><a href="#MappingSchema-258"><span class="linenos">258</span></a> +</span><span id="MappingSchema-259"><a href="#MappingSchema-259"><span class="linenos">259</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="MappingSchema-260"><a href="#MappingSchema-260"><span class="linenos">260</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema-261"><a href="#MappingSchema-261"><span class="linenos">261</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">)</span> +</span><span id="MappingSchema-262"><a href="#MappingSchema-262"><span class="linenos">262</span></a> +</span><span id="MappingSchema-263"><a href="#MappingSchema-263"><span class="linenos">263</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema-264"><a href="#MappingSchema-264"><span class="linenos">264</span></a> <span class="k">return</span> <span class="p">[]</span> +</span><span id="MappingSchema-265"><a href="#MappingSchema-265"><span class="linenos">265</span></a> +</span><span id="MappingSchema-266"><a href="#MappingSchema-266"><span class="linenos">266</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">only_visible</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">:</span> +</span><span id="MappingSchema-267"><a href="#MappingSchema-267"><span class="linenos">267</span></a> <span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> +</span><span id="MappingSchema-268"><a href="#MappingSchema-268"><span class="linenos">268</span></a> +</span><span id="MappingSchema-269"><a href="#MappingSchema-269"><span class="linenos">269</span></a> <span class="n">visible</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">)</span> +</span><span id="MappingSchema-270"><a href="#MappingSchema-270"><span class="linenos">270</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">col</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">schema</span> <span class="k">if</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">visible</span><span class="p">]</span> <span class="c1"># type: ignore</span> +</span><span id="MappingSchema-271"><a href="#MappingSchema-271"><span class="linenos">271</span></a> +</span><span id="MappingSchema-272"><a href="#MappingSchema-272"><span class="linenos">272</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span> <span class="o">|</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="MappingSchema-273"><a href="#MappingSchema-273"><span class="linenos">273</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="k">else</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> +</span><span id="MappingSchema-274"><a href="#MappingSchema-274"><span class="linenos">274</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema-275"><a href="#MappingSchema-275"><span class="linenos">275</span></a> <span class="k">if</span> <span class="n">table_</span><span class="p">:</span> +</span><span id="MappingSchema-276"><a href="#MappingSchema-276"><span class="linenos">276</span></a> <span class="n">table_schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="MappingSchema-277"><a href="#MappingSchema-277"><span class="linenos">277</span></a> <span class="k">if</span> <span class="n">table_schema</span><span class="p">:</span> +</span><span id="MappingSchema-278"><a href="#MappingSchema-278"><span class="linenos">278</span></a> <span class="n">column_type</span> <span class="o">=</span> <span class="n">table_schema</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="MappingSchema-279"><a href="#MappingSchema-279"><span class="linenos">279</span></a> +</span><span id="MappingSchema-280"><a href="#MappingSchema-280"><span class="linenos">280</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">):</span> +</span><span id="MappingSchema-281"><a href="#MappingSchema-281"><span class="linenos">281</span></a> <span class="k">return</span> <span class="n">column_type</span> +</span><span id="MappingSchema-282"><a href="#MappingSchema-282"><span class="linenos">282</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> +</span><span id="MappingSchema-283"><a href="#MappingSchema-283"><span class="linenos">283</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_to_data_type</span><span class="p">(</span><span class="n">column_type</span><span class="o">.</span><span class="n">upper</span><span class="p">())</span> +</span><span id="MappingSchema-284"><a href="#MappingSchema-284"><span class="linenos">284</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown column type '</span><span class="si">{</span><span class="n">column_type</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="MappingSchema-285"><a href="#MappingSchema-285"><span class="linenos">285</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">UNKNOWN</span><span class="p">)</span> +</span><span id="MappingSchema-286"><a href="#MappingSchema-286"><span class="linenos">286</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not convert table '</span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="MappingSchema-287"><a href="#MappingSchema-287"><span class="linenos">287</span></a> +</span><span id="MappingSchema-288"><a href="#MappingSchema-288"><span class="linenos">288</span></a> <span class="k">def</span> <span class="nf">_to_data_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">schema_type</span><span class="p">:</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="MappingSchema-289"><a href="#MappingSchema-289"><span class="linenos">289</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="MappingSchema-290"><a href="#MappingSchema-290"><span class="linenos">290</span></a><span class="sd"> Convert a type represented as a string to the corresponding :class:`sqlglot.exp.DataType` object.</span> +</span><span id="MappingSchema-291"><a href="#MappingSchema-291"><span class="linenos">291</span></a> +</span><span id="MappingSchema-292"><a href="#MappingSchema-292"><span class="linenos">292</span></a><span class="sd"> Args:</span> +</span><span id="MappingSchema-293"><a href="#MappingSchema-293"><span class="linenos">293</span></a><span class="sd"> schema_type: the type we want to convert.</span> +</span><span id="MappingSchema-294"><a href="#MappingSchema-294"><span class="linenos">294</span></a> +</span><span id="MappingSchema-295"><a href="#MappingSchema-295"><span class="linenos">295</span></a><span class="sd"> Returns:</span> +</span><span id="MappingSchema-296"><a href="#MappingSchema-296"><span class="linenos">296</span></a><span class="sd"> The resulting expression type.</span> +</span><span id="MappingSchema-297"><a href="#MappingSchema-297"><span class="linenos">297</span></a><span class="sd"> """</span> +</span><span id="MappingSchema-298"><a href="#MappingSchema-298"><span class="linenos">298</span></a> <span class="k">if</span> <span class="n">schema_type</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">:</span> +</span><span id="MappingSchema-299"><a href="#MappingSchema-299"><span class="linenos">299</span></a> <span class="k">try</span><span class="p">:</span> +</span><span id="MappingSchema-300"><a href="#MappingSchema-300"><span class="linenos">300</span></a> <span class="n">expression</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">maybe_parse</span><span class="p">(</span><span class="n">schema_type</span><span class="p">,</span> <span class="n">into</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">,</span> <span class="n">dialect</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">)</span> +</span><span id="MappingSchema-301"><a href="#MappingSchema-301"><span class="linenos">301</span></a> <span class="k">if</span> <span class="n">expression</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema-302"><a href="#MappingSchema-302"><span class="linenos">302</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not parse </span><span class="si">{</span><span class="n">schema_type</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="MappingSchema-303"><a href="#MappingSchema-303"><span class="linenos">303</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">[</span><span class="n">schema_type</span><span class="p">]</span> <span class="o">=</span> <span class="n">expression</span> <span class="c1"># type: ignore</span> +</span><span id="MappingSchema-304"><a href="#MappingSchema-304"><span class="linenos">304</span></a> <span class="k">except</span> <span class="ne">AttributeError</span><span class="p">:</span> +</span><span id="MappingSchema-305"><a href="#MappingSchema-305"><span class="linenos">305</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Failed to convert type </span><span class="si">{</span><span class="n">schema_type</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span><span id="MappingSchema-306"><a href="#MappingSchema-306"><span class="linenos">306</span></a> +</span><span id="MappingSchema-307"><a href="#MappingSchema-307"><span class="linenos">307</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">[</span><span class="n">schema_type</span><span class="p">]</span> +</span></pre></div> + + + <div class="docstring"><p>Schema based on a nested mapping.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>schema (dict):</strong> Mapping in one of the following forms: +<ol> +<li>{table: {col: type}}</li> +<li>{db: {table: {col: type}}}</li> +<li>{catalog: {db: {table: {col: type}}}}</li> +<li>None - Tables will be added later</li> +</ol></li> +<li><strong>visible (dict):</strong> Optional mapping of which columns in the schema are visible. If not provided, all columns +are assumed to be visible. The nesting should mirror that of the schema: +<ol> +<li>{table: set(<em>cols)}}</li> +<li>{db: {table: set(</em>cols)}}}</li> +<li>{catalog: {db: {table: set(*cols)}}}}</li> +</ol></li> +<li><strong>dialect (str):</strong> The dialect to be used for custom type mappings.</li> +</ul> +</div> + + + <div id="MappingSchema.__init__" class="classattr"> + <input id="MappingSchema.__init__-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="name">MappingSchema</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">visible</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>,</span><span class="param"> <span class="n">dialect</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n"><a href="dialects/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></span><span class="p">,</span> <span class="n">Type</span><span class="p">[</span><span class="n"><a href="dialects/dialect.html#Dialect">sqlglot.dialects.dialect.Dialect</a></span><span class="p">],</span> <span class="n">NoneType</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></span>)</span> + + <label class="view-source-button" for="MappingSchema.__init__-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.__init__"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.__init__-154"><a href="#MappingSchema.__init__-154"><span class="linenos">154</span></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span> +</span><span id="MappingSchema.__init__-155"><a href="#MappingSchema.__init__-155"><span class="linenos">155</span></a> <span class="bp">self</span><span class="p">,</span> +</span><span id="MappingSchema.__init__-156"><a href="#MappingSchema.__init__-156"><span class="linenos">156</span></a> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema.__init__-157"><a href="#MappingSchema.__init__-157"><span class="linenos">157</span></a> <span class="n">visible</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema.__init__-158"><a href="#MappingSchema.__init__-158"><span class="linenos">158</span></a> <span class="n">dialect</span><span class="p">:</span> <span class="n">DialectType</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> +</span><span id="MappingSchema.__init__-159"><a href="#MappingSchema.__init__-159"><span class="linenos">159</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema.__init__-160"><a href="#MappingSchema.__init__-160"><span class="linenos">160</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span> <span class="o">=</span> <span class="n">dialect</span> +</span><span id="MappingSchema.__init__-161"><a href="#MappingSchema.__init__-161"><span class="linenos">161</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span> <span class="o">=</span> <span class="n">visible</span> <span class="ow">or</span> <span class="p">{}</span> +</span><span id="MappingSchema.__init__-162"><a href="#MappingSchema.__init__-162"><span class="linenos">162</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">_type_mapping_cache</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span> +</span><span id="MappingSchema.__init__-163"><a href="#MappingSchema.__init__-163"><span class="linenos">163</span></a> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_normalize</span><span class="p">(</span><span class="n">schema</span> <span class="ow">or</span> <span class="p">{}))</span> +</span></pre></div> + + + + + </div> + <div id="MappingSchema.from_mapping_schema" class="classattr"> + <input id="MappingSchema.from_mapping_schema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + <div class="decorator">@classmethod</div> + + <span class="def">def</span> + <span class="name">from_mapping_schema</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">cls</span>,</span><span class="param"> <span class="n">mapping_schema</span><span class="p">:</span> <span class="n"><a href="#MappingSchema">sqlglot.schema.MappingSchema</a></span></span><span class="return-annotation">) -> <span class="n"><a href="#MappingSchema">sqlglot.schema.MappingSchema</a></span>:</span></span> + + <label class="view-source-button" for="MappingSchema.from_mapping_schema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.from_mapping_schema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.from_mapping_schema-165"><a href="#MappingSchema.from_mapping_schema-165"><span class="linenos">165</span></a> <span class="nd">@classmethod</span> +</span><span id="MappingSchema.from_mapping_schema-166"><a href="#MappingSchema.from_mapping_schema-166"><span class="linenos">166</span></a> <span class="k">def</span> <span class="nf">from_mapping_schema</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">mapping_schema</span><span class="p">:</span> <span class="n">MappingSchema</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="MappingSchema.from_mapping_schema-167"><a href="#MappingSchema.from_mapping_schema-167"><span class="linenos">167</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="MappingSchema.from_mapping_schema-168"><a href="#MappingSchema.from_mapping_schema-168"><span class="linenos">168</span></a> <span class="n">schema</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="MappingSchema.from_mapping_schema-169"><a href="#MappingSchema.from_mapping_schema-169"><span class="linenos">169</span></a> <span class="n">visible</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">visible</span><span class="p">,</span> +</span><span id="MappingSchema.from_mapping_schema-170"><a href="#MappingSchema.from_mapping_schema-170"><span class="linenos">170</span></a> <span class="n">dialect</span><span class="o">=</span><span class="n">mapping_schema</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="MappingSchema.from_mapping_schema-171"><a href="#MappingSchema.from_mapping_schema-171"><span class="linenos">171</span></a> <span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="MappingSchema.copy" class="classattr"> + <input id="MappingSchema.copy-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">copy</span><span class="signature pdoc-code condensed">(<span class="param"><span class="bp">self</span>, </span><span class="param"><span class="o">**</span><span class="n">kwargs</span></span><span class="return-annotation">) -> <span class="n"><a href="#MappingSchema">sqlglot.schema.MappingSchema</a></span>:</span></span> + + <label class="view-source-button" for="MappingSchema.copy-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.copy"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.copy-173"><a href="#MappingSchema.copy-173"><span class="linenos">173</span></a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="o">-></span> <span class="n">MappingSchema</span><span class="p">:</span> +</span><span id="MappingSchema.copy-174"><a href="#MappingSchema.copy-174"><span class="linenos">174</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span> +</span><span id="MappingSchema.copy-175"><a href="#MappingSchema.copy-175"><span class="linenos">175</span></a> <span class="o">**</span><span class="p">{</span> <span class="c1"># type: ignore</span> +</span><span id="MappingSchema.copy-176"><a href="#MappingSchema.copy-176"><span class="linenos">176</span></a> <span class="s2">"schema"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="MappingSchema.copy-177"><a href="#MappingSchema.copy-177"><span class="linenos">177</span></a> <span class="s2">"visible"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="o">.</span><span class="n">copy</span><span class="p">(),</span> +</span><span id="MappingSchema.copy-178"><a href="#MappingSchema.copy-178"><span class="linenos">178</span></a> <span class="s2">"dialect"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">dialect</span><span class="p">,</span> +</span><span id="MappingSchema.copy-179"><a href="#MappingSchema.copy-179"><span class="linenos">179</span></a> <span class="o">**</span><span class="n">kwargs</span><span class="p">,</span> +</span><span id="MappingSchema.copy-180"><a href="#MappingSchema.copy-180"><span class="linenos">180</span></a> <span class="p">}</span> +</span><span id="MappingSchema.copy-181"><a href="#MappingSchema.copy-181"><span class="linenos">181</span></a> <span class="p">)</span> +</span></pre></div> + + + + + </div> + <div id="MappingSchema.add_table" class="classattr"> + <input id="MappingSchema.add_table-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">add_table</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">dataframe</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">StructType</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span></span><span class="return-annotation">) -> <span class="kc">None</span>:</span></span> + + <label class="view-source-button" for="MappingSchema.add_table-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.add_table"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.add_table-210"><a href="#MappingSchema.add_table-210"><span class="linenos">210</span></a> <span class="k">def</span> <span class="nf">add_table</span><span class="p">(</span> +</span><span id="MappingSchema.add_table-211"><a href="#MappingSchema.add_table-211"><span class="linenos">211</span></a> <span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column_mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="MappingSchema.add_table-212"><a href="#MappingSchema.add_table-212"><span class="linenos">212</span></a> <span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema.add_table-213"><a href="#MappingSchema.add_table-213"><span class="linenos">213</span></a><span class="w"> </span><span class="sd">"""</span> +</span><span id="MappingSchema.add_table-214"><a href="#MappingSchema.add_table-214"><span class="linenos">214</span></a><span class="sd"> Register or update a table. Updates are only performed if a new column mapping is provided.</span> +</span><span id="MappingSchema.add_table-215"><a href="#MappingSchema.add_table-215"><span class="linenos">215</span></a> +</span><span id="MappingSchema.add_table-216"><a href="#MappingSchema.add_table-216"><span class="linenos">216</span></a><span class="sd"> Args:</span> +</span><span id="MappingSchema.add_table-217"><a href="#MappingSchema.add_table-217"><span class="linenos">217</span></a><span class="sd"> table: the `Table` expression instance or string representing the table.</span> +</span><span id="MappingSchema.add_table-218"><a href="#MappingSchema.add_table-218"><span class="linenos">218</span></a><span class="sd"> column_mapping: a column mapping that describes the structure of the table.</span> +</span><span id="MappingSchema.add_table-219"><a href="#MappingSchema.add_table-219"><span class="linenos">219</span></a><span class="sd"> """</span> +</span><span id="MappingSchema.add_table-220"><a href="#MappingSchema.add_table-220"><span class="linenos">220</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema.add_table-221"><a href="#MappingSchema.add_table-221"><span class="linenos">221</span></a> <span class="n">column_mapping</span> <span class="o">=</span> <span class="n">ensure_column_mapping</span><span class="p">(</span><span class="n">column_mapping</span><span class="p">)</span> +</span><span id="MappingSchema.add_table-222"><a href="#MappingSchema.add_table-222"><span class="linenos">222</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="MappingSchema.add_table-223"><a href="#MappingSchema.add_table-223"><span class="linenos">223</span></a> +</span><span id="MappingSchema.add_table-224"><a href="#MappingSchema.add_table-224"><span class="linenos">224</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">column_mapping</span><span class="p">:</span> +</span><span id="MappingSchema.add_table-225"><a href="#MappingSchema.add_table-225"><span class="linenos">225</span></a> <span class="k">return</span> +</span><span id="MappingSchema.add_table-226"><a href="#MappingSchema.add_table-226"><span class="linenos">226</span></a> +</span><span id="MappingSchema.add_table-227"><a href="#MappingSchema.add_table-227"><span class="linenos">227</span></a> <span class="n">_nested_set</span><span class="p">(</span> +</span><span id="MappingSchema.add_table-228"><a href="#MappingSchema.add_table-228"><span class="linenos">228</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">,</span> +</span><span id="MappingSchema.add_table-229"><a href="#MappingSchema.add_table-229"><span class="linenos">229</span></a> <span class="nb">list</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">))),</span> +</span><span id="MappingSchema.add_table-230"><a href="#MappingSchema.add_table-230"><span class="linenos">230</span></a> <span class="n">column_mapping</span><span class="p">,</span> +</span><span id="MappingSchema.add_table-231"><a href="#MappingSchema.add_table-231"><span class="linenos">231</span></a> <span class="p">)</span> +</span><span id="MappingSchema.add_table-232"><a href="#MappingSchema.add_table-232"><span class="linenos">232</span></a> <span class="bp">self</span><span class="o">.</span><span class="n">mapping_trie</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_build_trie</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">mapping</span><span class="p">)</span> +</span></pre></div> + + + <div class="docstring"><p>Register or update a table. Updates are only performed if a new column mapping is provided.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> the <code>Table</code> expression instance or string representing the table.</li> +<li><strong>column_mapping:</strong> a column mapping that describes the structure of the table.</li> +</ul> +</div> + + + </div> + <div id="MappingSchema.column_names" class="classattr"> + <input id="MappingSchema.column_names-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">column_names</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>:</span></span> + + <label class="view-source-button" for="MappingSchema.column_names-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.column_names"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.column_names-259"><a href="#MappingSchema.column_names-259"><span class="linenos">259</span></a> <span class="k">def</span> <span class="nf">column_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">only_visible</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]:</span> +</span><span id="MappingSchema.column_names-260"><a href="#MappingSchema.column_names-260"><span class="linenos">260</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_ensure_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema.column_names-261"><a href="#MappingSchema.column_names-261"><span class="linenos">261</span></a> <span class="n">schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">)</span> +</span><span id="MappingSchema.column_names-262"><a href="#MappingSchema.column_names-262"><span class="linenos">262</span></a> +</span><span id="MappingSchema.column_names-263"><a href="#MappingSchema.column_names-263"><span class="linenos">263</span></a> <span class="k">if</span> <span class="n">schema</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="MappingSchema.column_names-264"><a href="#MappingSchema.column_names-264"><span class="linenos">264</span></a> <span class="k">return</span> <span class="p">[]</span> +</span><span id="MappingSchema.column_names-265"><a href="#MappingSchema.column_names-265"><span class="linenos">265</span></a> +</span><span id="MappingSchema.column_names-266"><a href="#MappingSchema.column_names-266"><span class="linenos">266</span></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">only_visible</span> <span class="ow">or</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">:</span> +</span><span id="MappingSchema.column_names-267"><a href="#MappingSchema.column_names-267"><span class="linenos">267</span></a> <span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> +</span><span id="MappingSchema.column_names-268"><a href="#MappingSchema.column_names-268"><span class="linenos">268</span></a> +</span><span id="MappingSchema.column_names-269"><a href="#MappingSchema.column_names-269"><span class="linenos">269</span></a> <span class="n">visible</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_nested_get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table_parts</span><span class="p">(</span><span class="n">table_</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">visible</span><span class="p">)</span> +</span><span id="MappingSchema.column_names-270"><a href="#MappingSchema.column_names-270"><span class="linenos">270</span></a> <span class="k">return</span> <span class="p">[</span><span class="n">col</span> <span class="k">for</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">schema</span> <span class="k">if</span> <span class="n">col</span> <span class="ow">in</span> <span class="n">visible</span><span class="p">]</span> <span class="c1"># type: ignore</span> +</span></pre></div> + + + <div class="docstring"><p>Get the column names for a table.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> the <code>Table</code> expression instance.</li> +<li><strong>only_visible:</strong> whether to include invisible columns.</li> +</ul> + +<h6 id="returns">Returns:</h6> + +<blockquote> + <p>The list of column names.</p> +</blockquote> +</div> + + + </div> + <div id="MappingSchema.get_column_type" class="classattr"> + <input id="MappingSchema.get_column_type-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">get_column_type</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="bp">self</span>,</span><span class="param"> <span class="n">table</span><span class="p">:</span> <span class="n"><a href="expressions.html#Table">sqlglot.expressions.Table</a></span> <span class="o">|</span> <span class="nb">str</span>,</span><span class="param"> <span class="n">column</span><span class="p">:</span> <span class="n"><a href="expressions.html#Column">sqlglot.expressions.Column</a></span> <span class="o">|</span> <span class="nb">str</span></span><span class="return-annotation">) -> <span class="n"><a href="expressions.html#DataType">sqlglot.expressions.DataType</a></span>:</span></span> + + <label class="view-source-button" for="MappingSchema.get_column_type-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#MappingSchema.get_column_type"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="MappingSchema.get_column_type-272"><a href="#MappingSchema.get_column_type-272"><span class="linenos">272</span></a> <span class="k">def</span> <span class="nf">get_column_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Table</span> <span class="o">|</span> <span class="nb">str</span><span class="p">,</span> <span class="n">column</span><span class="p">:</span> <span class="n">exp</span><span class="o">.</span><span class="n">Column</span> <span class="o">|</span> <span class="nb">str</span><span class="p">)</span> <span class="o">-></span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">:</span> +</span><span id="MappingSchema.get_column_type-273"><a href="#MappingSchema.get_column_type-273"><span class="linenos">273</span></a> <span class="n">column_name</span> <span class="o">=</span> <span class="n">column</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="k">else</span> <span class="n">column</span><span class="o">.</span><span class="n">name</span> +</span><span id="MappingSchema.get_column_type-274"><a href="#MappingSchema.get_column_type-274"><span class="linenos">274</span></a> <span class="n">table_</span> <span class="o">=</span> <span class="n">exp</span><span class="o">.</span><span class="n">to_table</span><span class="p">(</span><span class="n">table</span><span class="p">)</span> +</span><span id="MappingSchema.get_column_type-275"><a href="#MappingSchema.get_column_type-275"><span class="linenos">275</span></a> <span class="k">if</span> <span class="n">table_</span><span class="p">:</span> +</span><span id="MappingSchema.get_column_type-276"><a href="#MappingSchema.get_column_type-276"><span class="linenos">276</span></a> <span class="n">table_schema</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="n">table_</span><span class="p">,</span> <span class="n">raise_on_missing</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span> +</span><span id="MappingSchema.get_column_type-277"><a href="#MappingSchema.get_column_type-277"><span class="linenos">277</span></a> <span class="k">if</span> <span class="n">table_schema</span><span class="p">:</span> +</span><span id="MappingSchema.get_column_type-278"><a href="#MappingSchema.get_column_type-278"><span class="linenos">278</span></a> <span class="n">column_type</span> <span class="o">=</span> <span class="n">table_schema</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">column_name</span><span class="p">)</span> +</span><span id="MappingSchema.get_column_type-279"><a href="#MappingSchema.get_column_type-279"><span class="linenos">279</span></a> +</span><span id="MappingSchema.get_column_type-280"><a href="#MappingSchema.get_column_type-280"><span class="linenos">280</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">):</span> +</span><span id="MappingSchema.get_column_type-281"><a href="#MappingSchema.get_column_type-281"><span class="linenos">281</span></a> <span class="k">return</span> <span class="n">column_type</span> +</span><span id="MappingSchema.get_column_type-282"><a href="#MappingSchema.get_column_type-282"><span class="linenos">282</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">column_type</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> +</span><span id="MappingSchema.get_column_type-283"><a href="#MappingSchema.get_column_type-283"><span class="linenos">283</span></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_to_data_type</span><span class="p">(</span><span class="n">column_type</span><span class="o">.</span><span class="n">upper</span><span class="p">())</span> +</span><span id="MappingSchema.get_column_type-284"><a href="#MappingSchema.get_column_type-284"><span class="linenos">284</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Unknown column type '</span><span class="si">{</span><span class="n">column_type</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span><span id="MappingSchema.get_column_type-285"><a href="#MappingSchema.get_column_type-285"><span class="linenos">285</span></a> <span class="k">return</span> <span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="p">(</span><span class="n">this</span><span class="o">=</span><span class="n">exp</span><span class="o">.</span><span class="n">DataType</span><span class="o">.</span><span class="n">Type</span><span class="o">.</span><span class="n">UNKNOWN</span><span class="p">)</span> +</span><span id="MappingSchema.get_column_type-286"><a href="#MappingSchema.get_column_type-286"><span class="linenos">286</span></a> <span class="k">raise</span> <span class="n">SchemaError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Could not convert table '</span><span class="si">{</span><span class="n">table</span><span class="si">}</span><span class="s2">'"</span><span class="p">)</span> +</span></pre></div> + + + <div class="docstring"><p>Get the <code>sqlglot.exp.DataType</code> type of a column in the schema.</p> + +<h6 id="arguments">Arguments:</h6> + +<ul> +<li><strong>table:</strong> the source table.</li> +<li><strong>column:</strong> the target column.</li> +</ul> + +<h6 id="returns">Returns:</h6> + +<blockquote> + <p>The resulting column type.</p> +</blockquote> +</div> + + + </div> + <div class="inherited"> + <h5>Inherited Members</h5> + <dl> + <div><dt><a href="#AbstractMappingSchema">AbstractMappingSchema</a></dt> + <dd id="MappingSchema.supported_table_args" class="variable"><a href="#AbstractMappingSchema.supported_table_args">supported_table_args</a></dd> + <dd id="MappingSchema.table_parts" class="function"><a href="#AbstractMappingSchema.table_parts">table_parts</a></dd> + <dd id="MappingSchema.find" class="function"><a href="#AbstractMappingSchema.find">find</a></dd> + + </div> + </dl> + </div> + </section> + <section id="ensure_schema"> + <input id="ensure_schema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">ensure_schema</span><span class="signature pdoc-code condensed">(<span class="param"><span class="n">schema</span><span class="p">:</span> <span class="n">Any</span></span><span class="return-annotation">) -> <span class="n"><a href="#Schema">sqlglot.schema.Schema</a></span>:</span></span> + + <label class="view-source-button" for="ensure_schema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#ensure_schema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="ensure_schema-310"><a href="#ensure_schema-310"><span class="linenos">310</span></a><span class="k">def</span> <span class="nf">ensure_schema</span><span class="p">(</span><span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">)</span> <span class="o">-></span> <span class="n">Schema</span><span class="p">:</span> +</span><span id="ensure_schema-311"><a href="#ensure_schema-311"><span class="linenos">311</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">schema</span><span class="p">,</span> <span class="n">Schema</span><span class="p">):</span> +</span><span id="ensure_schema-312"><a href="#ensure_schema-312"><span class="linenos">312</span></a> <span class="k">return</span> <span class="n">schema</span> +</span><span id="ensure_schema-313"><a href="#ensure_schema-313"><span class="linenos">313</span></a> +</span><span id="ensure_schema-314"><a href="#ensure_schema-314"><span class="linenos">314</span></a> <span class="k">return</span> <span class="n">MappingSchema</span><span class="p">(</span><span class="n">schema</span><span class="p">)</span> +</span></pre></div> + + + + + </section> + <section id="ensure_column_mapping"> + <input id="ensure_column_mapping-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">ensure_column_mapping</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">mapping</span><span class="p">:</span> <span class="n">Union</span><span class="p">[</span><span class="n">Dict</span><span class="p">,</span> <span class="nb">str</span><span class="p">,</span> <span class="n">sqlglot</span><span class="o">.</span><span class="n">dataframe</span><span class="o">.</span><span class="n">sql</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">StructType</span><span class="p">,</span> <span class="n">List</span><span class="p">,</span> <span class="n">NoneType</span><span class="p">]</span></span><span class="return-annotation">):</span></span> + + <label class="view-source-button" for="ensure_column_mapping-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#ensure_column_mapping"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="ensure_column_mapping-317"><a href="#ensure_column_mapping-317"><span class="linenos">317</span></a><span class="k">def</span> <span class="nf">ensure_column_mapping</span><span class="p">(</span><span class="n">mapping</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">ColumnMapping</span><span class="p">]):</span> +</span><span id="ensure_column_mapping-318"><a href="#ensure_column_mapping-318"><span class="linenos">318</span></a> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span> +</span><span id="ensure_column_mapping-319"><a href="#ensure_column_mapping-319"><span class="linenos">319</span></a> <span class="k">return</span> <span class="n">mapping</span> +</span><span id="ensure_column_mapping-320"><a href="#ensure_column_mapping-320"><span class="linenos">320</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span> +</span><span id="ensure_column_mapping-321"><a href="#ensure_column_mapping-321"><span class="linenos">321</span></a> <span class="n">col_name_type_strs</span> <span class="o">=</span> <span class="p">[</span><span class="n">x</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">mapping</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">","</span><span class="p">)]</span> +</span><span id="ensure_column_mapping-322"><a href="#ensure_column_mapping-322"><span class="linenos">322</span></a> <span class="k">return</span> <span class="p">{</span> +</span><span id="ensure_column_mapping-323"><a href="#ensure_column_mapping-323"><span class="linenos">323</span></a> <span class="n">name_type_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">":"</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">():</span> <span class="n">name_type_str</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">":"</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> +</span><span id="ensure_column_mapping-324"><a href="#ensure_column_mapping-324"><span class="linenos">324</span></a> <span class="k">for</span> <span class="n">name_type_str</span> <span class="ow">in</span> <span class="n">col_name_type_strs</span> +</span><span id="ensure_column_mapping-325"><a href="#ensure_column_mapping-325"><span class="linenos">325</span></a> <span class="p">}</span> +</span><span id="ensure_column_mapping-326"><a href="#ensure_column_mapping-326"><span class="linenos">326</span></a> <span class="c1"># Check if mapping looks like a DataFrame StructType</span> +</span><span id="ensure_column_mapping-327"><a href="#ensure_column_mapping-327"><span class="linenos">327</span></a> <span class="k">elif</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="s2">"simpleString"</span><span class="p">):</span> +</span><span id="ensure_column_mapping-328"><a href="#ensure_column_mapping-328"><span class="linenos">328</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">struct_field</span><span class="o">.</span><span class="n">name</span><span class="p">:</span> <span class="n">struct_field</span><span class="o">.</span><span class="n">dataType</span><span class="o">.</span><span class="n">simpleString</span><span class="p">()</span> <span class="k">for</span> <span class="n">struct_field</span> <span class="ow">in</span> <span class="n">mapping</span><span class="p">}</span> <span class="c1"># type: ignore</span> +</span><span id="ensure_column_mapping-329"><a href="#ensure_column_mapping-329"><span class="linenos">329</span></a> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mapping</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span> +</span><span id="ensure_column_mapping-330"><a href="#ensure_column_mapping-330"><span class="linenos">330</span></a> <span class="k">return</span> <span class="p">{</span><span class="n">x</span><span class="o">.</span><span class="n">strip</span><span class="p">():</span> <span class="kc">None</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">mapping</span><span class="p">}</span> +</span><span id="ensure_column_mapping-331"><a href="#ensure_column_mapping-331"><span class="linenos">331</span></a> <span class="k">elif</span> <span class="n">mapping</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> +</span><span id="ensure_column_mapping-332"><a href="#ensure_column_mapping-332"><span class="linenos">332</span></a> <span class="k">return</span> <span class="p">{}</span> +</span><span id="ensure_column_mapping-333"><a href="#ensure_column_mapping-333"><span class="linenos">333</span></a> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Invalid mapping provided: </span><span class="si">{</span><span class="nb">type</span><span class="p">(</span><span class="n">mapping</span><span class="p">)</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> +</span></pre></div> + + + + + </section> + <section id="flatten_schema"> + <input id="flatten_schema-view-source" class="view-source-toggle-state" type="checkbox" aria-hidden="true" tabindex="-1"> +<div class="attr function"> + + <span class="def">def</span> + <span class="name">flatten_schema</span><span class="signature pdoc-code multiline">(<span class="param"> <span class="n">schema</span><span class="p">:</span> <span class="n">Dict</span>,</span><span class="param"> <span class="n">depth</span><span class="p">:</span> <span class="nb">int</span>,</span><span class="param"> <span class="n">keys</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span></span><span class="return-annotation">) -> <span class="n">List</span><span class="p">[</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span>:</span></span> + + <label class="view-source-button" for="flatten_schema-view-source"><span>View Source</span></label> + + </div> + <a class="headerlink" href="#flatten_schema"></a> + <div class="pdoc-code codehilite"><pre><span></span><span id="flatten_schema-336"><a href="#flatten_schema-336"><span class="linenos">336</span></a><span class="k">def</span> <span class="nf">flatten_schema</span><span class="p">(</span> +</span><span id="flatten_schema-337"><a href="#flatten_schema-337"><span class="linenos">337</span></a> <span class="n">schema</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Dict</span><span class="p">,</span> <span class="n">depth</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">keys</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">Optional</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]</span> <span class="o">=</span> <span class="kc">None</span> +</span><span id="flatten_schema-338"><a href="#flatten_schema-338"><span class="linenos">338</span></a><span class="p">)</span> <span class="o">-></span> <span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="n">t</span><span class="o">.</span><span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]]:</span> +</span><span id="flatten_schema-339"><a href="#flatten_schema-339"><span class="linenos">339</span></a> <span class="n">tables</span> <span class="o">=</span> <span class="p">[]</span> +</span><span id="flatten_schema-340"><a href="#flatten_schema-340"><span class="linenos">340</span></a> <span class="n">keys</span> <span class="o">=</span> <span class="n">keys</span> <span class="ow">or</span> <span class="p">[]</span> +</span><span id="flatten_schema-341"><a href="#flatten_schema-341"><span class="linenos">341</span></a> +</span><span id="flatten_schema-342"><a href="#flatten_schema-342"><span class="linenos">342</span></a> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">schema</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> +</span><span id="flatten_schema-343"><a href="#flatten_schema-343"><span class="linenos">343</span></a> <span class="k">if</span> <span class="n">depth</span> <span class="o">>=</span> <span class="mi">2</span><span class="p">:</span> +</span><span id="flatten_schema-344"><a href="#flatten_schema-344"><span class="linenos">344</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="n">flatten_schema</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">depth</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">keys</span> <span class="o">+</span> <span class="p">[</span><span class="n">k</span><span class="p">]))</span> +</span><span id="flatten_schema-345"><a href="#flatten_schema-345"><span class="linenos">345</span></a> <span class="k">elif</span> <span class="n">depth</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span> +</span><span id="flatten_schema-346"><a href="#flatten_schema-346"><span class="linenos">346</span></a> <span class="n">tables</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">keys</span> <span class="o">+</span> <span class="p">[</span><span class="n">k</span><span class="p">])</span> +</span><span id="flatten_schema-347"><a href="#flatten_schema-347"><span class="linenos">347</span></a> <span class="k">return</span> <span class="n">tables</span> +</span></pre></div> + + + + + </section> + </main> +<script> + function escapeHTML(html) { + return document.createElement('div').appendChild(document.createTextNode(html)).parentNode.innerHTML; + } + + const originalContent = document.querySelector("main.pdoc"); + let currentContent = originalContent; + + function setContent(innerHTML) { + let elem; + if (innerHTML) { + elem = document.createElement("main"); + elem.classList.add("pdoc"); + elem.innerHTML = innerHTML; + } else { + elem = originalContent; + } + if (currentContent !== elem) { + currentContent.replaceWith(elem); + currentContent = elem; + } + } + + function getSearchTerm() { + return (new URL(window.location)).searchParams.get("search"); + } + + const searchBox = document.querySelector(".pdoc input[type=search]"); + searchBox.addEventListener("input", function () { + let url = new URL(window.location); + if (searchBox.value.trim()) { + url.hash = ""; + url.searchParams.set("search", searchBox.value); + } else { + url.searchParams.delete("search"); + } + history.replaceState("", "", url.toString()); + onInput(); + }); + window.addEventListener("popstate", onInput); + + + let search, searchErr; + + async function initialize() { + try { + search = await new Promise((resolve, reject) => { + const script = document.createElement("script"); + script.type = "text/javascript"; + script.async = true; + script.onload = () => resolve(window.pdocSearch); + script.onerror = (e) => reject(e); + script.src = "../search.js"; + document.getElementsByTagName("head")[0].appendChild(script); + }); + } catch (e) { + console.error("Cannot fetch pdoc search index"); + searchErr = "Cannot fetch search index."; + } + onInput(); + + document.querySelector("nav.pdoc").addEventListener("click", e => { + if (e.target.hash) { + searchBox.value = ""; + searchBox.dispatchEvent(new Event("input")); + } + }); + } + + function onInput() { + setContent((() => { + const term = getSearchTerm(); + if (!term) { + return null + } + if (searchErr) { + return `<h3>Error: ${searchErr}</h3>` + } + if (!search) { + return "<h3>Searching...</h3>" + } + + window.scrollTo({top: 0, left: 0, behavior: 'auto'}); + + const results = search(term); + + let html; + if (results.length === 0) { + html = `No search results for '${escapeHTML(term)}'.` + } else { + html = `<h4>${results.length} search result${results.length > 1 ? "s" : ""} for '${escapeHTML(term)}'.</h4>`; + } + for (let result of results.slice(0, 10)) { + let doc = result.doc; + let url = `../${doc.modulename.replaceAll(".", "/")}.html`; + if (doc.qualname) { + url += `#${doc.qualname}`; + } + + let heading; + switch (result.doc.kind) { + case "function": + if (doc.fullname.endsWith(".__init__")) { + heading = `<span class="name">${doc.fullname.replace(/\.__init__$/, "")}</span>${doc.signature}`; + } else { + heading = `<span class="def">${doc.funcdef}</span> <span class="name">${doc.fullname}</span>${doc.signature}`; + } + break; + case "class": + heading = `<span class="def">class</span> <span class="name">${doc.fullname}</span>`; + if (doc.bases) + heading += `<wbr>(<span class="base">${doc.bases}</span>)`; + heading += `:`; + break; + case "variable": + heading = `<span class="name">${doc.fullname}</span>`; + if (doc.annotation) + heading += `<span class="annotation">${doc.annotation}</span>`; + if (doc.default_value) + heading += `<span class="default_value">${doc.default_value}</span>`; + break; + default: + heading = `<span class="name">${doc.fullname}</span>`; + break; + } + html += ` + <section class="search-result"> + <a href="${url}" class="attr ${doc.kind}">${heading}</a> + <div class="docstring">${doc.doc}</div> + </section> + `; + + } + return html; + })()); + } + + if (getSearchTerm()) { + initialize(); + searchBox.value = getSearchTerm(); + onInput(); + } else { + searchBox.addEventListener("focus", initialize, {once: true}); + } + + searchBox.addEventListener("keydown", e => { + if (["ArrowDown", "ArrowUp", "Enter"].includes(e.key)) { + let focused = currentContent.querySelector(".search-result.focused"); + if (!focused) { + currentContent.querySelector(".search-result").classList.add("focused"); + } else if ( + e.key === "ArrowDown" + && focused.nextElementSibling + && focused.nextElementSibling.classList.contains("search-result") + ) { + focused.classList.remove("focused"); + focused.nextElementSibling.classList.add("focused"); + focused.nextElementSibling.scrollIntoView({ + behavior: "smooth", + block: "nearest", + inline: "nearest" + }); + } else if ( + e.key === "ArrowUp" + && focused.previousElementSibling + && focused.previousElementSibling.classList.contains("search-result") + ) { + focused.classList.remove("focused"); + focused.previousElementSibling.classList.add("focused"); + focused.previousElementSibling.scrollIntoView({ + behavior: "smooth", + block: "nearest", + inline: "nearest" + }); + } else if ( + e.key === "Enter" + ) { + focused.querySelector("a").click(); + } + } + }); +</script></body> +</html>
\ No newline at end of file |