1 files changed, 205 insertions, 0 deletions
diff --git a/www/c3ref/table_column_metadata.html b/www/c3ref/table_column_metadata.html
new file mode 100644
index 0000000..d641f69
--- /dev/null
+++ b/www/c3ref/table_column_metadata.html
@@ -0,0 +1,205 @@
+<!DOCTYPE html>
+<html><head>
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta http-equiv="content-type" content="text/html; charset=UTF-8">
+<link href="../sqlite.css" rel="stylesheet">
+<title>Extract Metadata About A Column Of A Table</title>
+<!-- path=../ -->
+</head>
+<body>
+<div class=nosearch>
+<a href="../index.html">
+<img class="logo" src="../images/sqlite370_banner.gif" alt="SQLite" border="0">
+</a>
+<div><!-- IE hack to prevent disappearing logo --></div>
+<div class="tagline desktoponly">
+Small. Fast. Reliable.<br>Choose any three.
+</div>
+<div class="menu mainmenu">
+<ul>
+<li><a href="../index.html">Home</a>
+<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
+<li class='wideonly'><a href='../about.html'>About</a>
+<li class='desktoponly'><a href="../docs.html">Documentation</a>
+<li class='desktoponly'><a href="../download.html">Download</a>
+<li class='wideonly'><a href='../copyright.html'>License</a>
+<li class='desktoponly'><a href="../support.html">Support</a>
+<li class='desktoponly'><a href="../prosupport.html">Purchase</a>
+<li class='search' id='search_menubutton'>
+<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
+</ul>
+</div>
+<div class="menu submenu" id="submenu">
+<ul>
+<li><a href='../about.html'>About</a>
+<li><a href='../docs.html'>Documentation</a>
+<li><a href='../download.html'>Download</a>
+<li><a href='../support.html'>Support</a>
+<li><a href='../prosupport.html'>Purchase</a>
+</ul>
+</div>
+<div class="searchmenu" id="searchmenu">
+<form method="GET" action="../search">
+<select name="s" id="searchtype">
+<option value="d">Search Documentation</option>
+<option value="c">Search Changelog</option>
+</select>
+<input type="text" name="q" id="searchbox" value="">
+<input type="submit" value="Go">
+</form>
+</div>
+</div>
+<script>
+function toggle_div(nm) {
+var w = document.getElementById(nm);
+if( w.style.display=="block" ){
+w.style.display = "none";
+}else{
+w.style.display = "block";
+}
+}
+function toggle_search() {
+var w = document.getElementById("searchmenu");
+if( w.style.display=="block" ){
+w.style.display = "none";
+} else {
+w.style.display = "block";
+setTimeout(function(){
+document.getElementById("searchbox").focus()
+}, 30);
+}
+}
+function div_off(nm){document.getElementById(nm).style.display="none";}
+window.onbeforeunload = function(e){div_off("submenu");}
+/* Disable the Search feature if we are not operating from CGI, since */
+/* Search is accomplished using CGI and will not work without it. */
+if( !location.origin || !location.origin.match || !location.origin.match(/http/) ){
+document.getElementById("search_menubutton").style.display = "none";
+}
+/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
+function hideorshow(btn,obj){
+var x = document.getElementById(obj);
+var b = document.getElementById(btn);
+if( x.style.display!='none' ){
+x.style.display = 'none';
+b.innerHTML='show';
+}else{
+x.style.display = '';
+b.innerHTML='hide';
+}
+return false;
+}
+var antiRobot = 0;
+function antiRobotGo(){
+if( antiRobot!=3 ) return;
+antiRobot = 7;
+var j = document.getElementById("mtimelink");
+if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href");
+}
+function antiRobotDefense(){
+document.body.onmousedown=function(){
+antiRobot |= 2;
+antiRobotGo();
+document.body.onmousedown=null;
+}
+document.body.onmousemove=function(){
+antiRobot |= 2;
+antiRobotGo();
+document.body.onmousemove=null;
+}
+setTimeout(function(){
+antiRobot |= 1;
+antiRobotGo();
+}, 100)
+antiRobotGo();
+}
+antiRobotDefense();
+</script>
+<!-- keywords: sqlite3_table_column_metadata -->
+<div class=nosearch>
+<a href="intro.html"><h2>SQLite C Interface</h2></a>
+<h2>Extract Metadata About A Column Of A Table</h2>
+</div>
+<blockquote><pre>
+int sqlite3_table_column_metadata(
+  sqlite3 *db,                /* Connection handle */
+  const char *zDbName,        /* Database name or NULL */
+  const char *zTableName,     /* Table name */
+  const char *zColumnName,    /* Column name */
+  char const **pzDataType,    /* OUTPUT: Declared data type */
+  char const **pzCollSeq,     /* OUTPUT: Collation sequence name */
+  int *pNotNull,              /* OUTPUT: True if NOT NULL constraint exists */
+  int *pPrimaryKey,           /* OUTPUT: True if column part of PK */
+  int *pAutoinc               /* OUTPUT: True if column is auto-increment */
+);
+</pre></blockquote>
+<p>
+The sqlite3_table_column_metadata(X,D,T,C,....) routine returns
+information about column C of table T in database D
+on <a href="../c3ref/sqlite3.html">database connection</a> X.  The sqlite3_table_column_metadata()
+interface returns SQLITE_OK and fills in the non-NULL pointers in
+the final five arguments with appropriate values if the specified
+column exists.  The sqlite3_table_column_metadata() interface returns
+SQLITE_ERROR if the specified column does not exist.
+If the column-name parameter to sqlite3_table_column_metadata() is a
+NULL pointer, then this routine simply checks for the existence of the
+table and returns SQLITE_OK if the table exists and SQLITE_ERROR if it
+does not.  If the table name parameter T in a call to
+sqlite3_table_column_metadata(X,D,T,C,...) is NULL then the result is
+undefined behavior.</p>
+
+<p>The column is identified by the second, third and fourth parameters to
+this function. The second parameter is either the name of the database
+(i.e. "main", "temp", or an attached database) containing the specified
+table or NULL. If it is NULL, then all attached databases are searched
+for the table using the same algorithm used by the database engine to
+resolve unqualified table references.</p>
+
+<p>The third and fourth parameters to this function are the table and column
+name of the desired column, respectively.</p>
+
+<p>Metadata is returned by writing to the memory locations passed as the 5th
+and subsequent parameters to this function. Any of these arguments may be
+NULL, in which case the corresponding element of metadata is omitted.</p>
+
+<p><blockquote>
+<table border="1">
+<tr><th> Parameter <th> Output<br>Type <th>  Description</p>
+
+<p><tr><td> 5th <td> const char* <td> Data type
+<tr><td> 6th <td> const char* <td> Name of default collation sequence
+<tr><td> 7th <td> int         <td> True if column has a NOT NULL constraint
+<tr><td> 8th <td> int         <td> True if column is part of the PRIMARY KEY
+<tr><td> 9th <td> int         <td> True if column is <a href="../autoinc.html">AUTOINCREMENT</a>
+</table>
+</blockquote></p>
+
+<p>The memory pointed to by the character pointers returned for the
+declaration type and collation sequence is valid until the next
+call to any SQLite API function.</p>
+
+<p>If the specified table is actually a view, an <a href="../rescode.html">error code</a> is returned.</p>
+
+<p>If the specified column is "rowid", "oid" or "_rowid_" and the table
+is not a <a href="../withoutrowid.html">WITHOUT ROWID</a> table and an
+<a href="../lang_createtable.html#rowid">INTEGER PRIMARY KEY</a> column has been explicitly declared, then the output
+parameters are set for the explicitly declared column. If there is no
+<a href="../lang_createtable.html#rowid">INTEGER PRIMARY KEY</a> column, then the outputs
+for the <a href="../lang_createtable.html#rowid">rowid</a> are set as follows:</p>
+
+<p><pre>
+data type: "INTEGER"
+collation sequence: "BINARY"
+not null: 0
+primary key: 1
+auto increment: 0
+</pre></p>
+
+<p>This function causes all database schemas to be read from disk and
+parsed, if that has not already been done, and returns an error if
+any errors are encountered while loading the schema.
+</p><p>See also lists of
+  <a href="objlist.html">Objects</a>,
+  <a href="constlist.html">Constants</a>, and
+  <a href="funclist.html">Functions</a>.</p>
+