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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:28:19 +0000
commit18657a960e125336f704ea058e25c27bd3900dcb (patch)
tree17b438b680ed45a996d7b59951e6aa34023783f2 /www/c3ref/module.html
parentInitial commit. (diff)
downloadsqlite3-upstream.tar.xz
sqlite3-upstream.zip
Adding upstream version 3.40.1.upstream/3.40.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<title>Virtual Table Object</title>
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+<!-- keywords: sqlite3_module {virtual table module} -->
+<div class=nosearch>
+<a href="intro.html"><h2>SQLite C Interface</h2></a>
+<h2>Virtual Table Object</h2>
+</div>
+<blockquote><pre>
+struct sqlite3_module {
+ int iVersion;
+ int (*xCreate)(sqlite3*, void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVTab, char**);
+ int (*xConnect)(sqlite3*, void *pAux,
+ int argc, const char *const*argv,
+ sqlite3_vtab **ppVTab, char**);
+ int (*xBestIndex)(sqlite3_vtab *pVTab, sqlite3_index_info*);
+ int (*xDisconnect)(sqlite3_vtab *pVTab);
+ int (*xDestroy)(sqlite3_vtab *pVTab);
+ int (*xOpen)(sqlite3_vtab *pVTab, sqlite3_vtab_cursor **ppCursor);
+ int (*xClose)(sqlite3_vtab_cursor*);
+ int (*xFilter)(sqlite3_vtab_cursor*, int idxNum, const char *idxStr,
+ int argc, sqlite3_value **argv);
+ int (*xNext)(sqlite3_vtab_cursor*);
+ int (*xEof)(sqlite3_vtab_cursor*);
+ int (*xColumn)(sqlite3_vtab_cursor*, sqlite3_context*, int);
+ int (*xRowid)(sqlite3_vtab_cursor*, sqlite3_int64 *pRowid);
+ int (*xUpdate)(sqlite3_vtab *, int, sqlite3_value **, sqlite3_int64 *);
+ int (*xBegin)(sqlite3_vtab *pVTab);
+ int (*xSync)(sqlite3_vtab *pVTab);
+ int (*xCommit)(sqlite3_vtab *pVTab);
+ int (*xRollback)(sqlite3_vtab *pVTab);
+ int (*xFindFunction)(sqlite3_vtab *pVtab, int nArg, const char *zName,
+ void (**pxFunc)(sqlite3_context*,int,sqlite3_value**),
+ void **ppArg);
+ int (*xRename)(sqlite3_vtab *pVtab, const char *zNew);
+ /* The methods above are in version 1 of the sqlite_module object. Those
+ ** below are for version 2 and greater. */
+ int (*xSavepoint)(sqlite3_vtab *pVTab, int);
+ int (*xRelease)(sqlite3_vtab *pVTab, int);
+ int (*xRollbackTo)(sqlite3_vtab *pVTab, int);
+ /* The methods above are in versions 1 and 2 of the sqlite_module object.
+ ** Those below are for version 3 and greater. */
+ int (*xShadowName)(const char*);
+};
+</pre></blockquote>
+<p>
+This structure, sometimes called a "virtual table module",
+defines the implementation of a <a href="../vtab.html">virtual table</a>.
+This structure consists mostly of methods for the module.</p>
+
+<p>A virtual table module is created by filling in a persistent
+instance of this structure and passing a pointer to that instance
+to <a href="../c3ref/create_module.html">sqlite3_create_module()</a> or <a href="../c3ref/create_module.html">sqlite3_create_module_v2()</a>.
+The registration remains valid until it is replaced by a different
+module or until the <a href="../c3ref/sqlite3.html">database connection</a> closes. The content
+of this structure must not change while it is registered with
+any database connection.
+</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>
+
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