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diff --git a/www/session/sqlite3changegroup_add.html b/www/session/sqlite3changegroup_add.html new file mode 100644 index 0000000..cb6f018 --- /dev/null +++ b/www/session/sqlite3changegroup_add.html @@ -0,0 +1,195 @@ +<!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>Add A Changeset To A Changegroup</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> +<a href="intro.html"><h2>Session Module C Interface</h2></a><h2>Add A Changeset To A Changegroup</h2><blockquote><pre>int sqlite3changegroup_add(sqlite3_changegroup*, int nData, void *pData); +</pre></blockquote><p> +Add all changes within the changeset (or patchset) in buffer pData (size +nData bytes) to the changegroup. </p> + +<p>If the buffer contains a patchset, then all prior calls to this function +on the same changegroup object must also have specified patchsets. Or, if +the buffer contains a changeset, so must have the earlier calls to this +function. Otherwise, SQLITE_ERROR is returned and no changes are added +to the changegroup.</p> + +<p>Rows within the changeset and changegroup are identified by the values in +their PRIMARY KEY columns. A change in the changeset is considered to +apply to the same row as a change already present in the changegroup if +the two rows have the same primary key.</p> + +<p>Changes to rows that do not already appear in the changegroup are +simply copied into it. Or, if both the new changeset and the changegroup +contain changes that apply to a single row, the final contents of the +changegroup depends on the type of each change, as follows:</p> + +<p><table border=1 style="margin-left:8ex;margin-right:8ex"> + <tr><th style="white-space:pre">Existing Change </th> + <th style="white-space:pre">New Change </th> + <th>Output Change + <tr><td>INSERT <td>INSERT <td> + The new change is ignored. This case does not occur if the new + changeset was recorded immediately after the changesets already + added to the changegroup. + <tr><td>INSERT <td>UPDATE <td> + The INSERT change remains in the changegroup. The values in the + INSERT change are modified as if the row was inserted by the + existing change and then updated according to the new change. + <tr><td>INSERT <td>DELETE <td> + The existing INSERT is removed from the changegroup. The DELETE is + not added. + <tr><td>UPDATE <td>INSERT <td> + The new change is ignored. This case does not occur if the new + changeset was recorded immediately after the changesets already + added to the changegroup. + <tr><td>UPDATE <td>UPDATE <td> + The existing UPDATE remains within the changegroup. It is amended + so that the accompanying values are as if the row was updated once + by the existing change and then again by the new change. + <tr><td>UPDATE <td>DELETE <td> + The existing UPDATE is replaced by the new DELETE within the + changegroup. + <tr><td>DELETE <td>INSERT <td> + If one or more of the column values in the row inserted by the + new change differ from those in the row deleted by the existing + change, the existing DELETE is replaced by an UPDATE within the + changegroup. Otherwise, if the inserted row is exactly the same + as the deleted row, the existing DELETE is simply discarded. + <tr><td>DELETE <td>UPDATE <td> + The new change is ignored. This case does not occur if the new + changeset was recorded immediately after the changesets already + added to the changegroup. + <tr><td>DELETE <td>DELETE <td> + The new change is ignored. This case does not occur if the new + changeset was recorded immediately after the changesets already + added to the changegroup. +</table></p> + +<p>If the new changeset contains changes to a table that is already present +in the changegroup, then the number of columns and the position of the +primary key columns for the table must be consistent. If this is not the +case, this function fails with SQLITE_SCHEMA. If the input changeset +appears to be corrupt and the corruption is detected, SQLITE_CORRUPT is +returned. Or, if an out-of-memory condition occurs during processing, this +function returns SQLITE_NOMEM. In all cases, if an error occurs the state +of the final contents of the changegroup is undefined.</p> + +<p>If no error occurs, SQLITE_OK is returned. +</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> + |