3 # Rebuild the fulltext search indexes. This may take a while
4 # depending on the database size and server configuration.
6 # Rebuilding is faster if you drop the index and recreate it,
7 # but that will prevent searches from working while it runs.
9 define( "RTI_CHUNK_SIZE", 500 );
11 function dropTextIndex( &$database )
13 $searchindex = $database->tableName( 'searchindex' );
14 if ( $database->indexExists( "searchindex", "si_title" ) ) {
15 echo "Dropping index...\n";
16 $sql = "ALTER TABLE $searchindex DROP INDEX si_title, DROP INDEX si_text";
17 $database->query($sql, "dropTextIndex" );
21 function createTextIndex( &$database )
23 $searchindex = $database->tableName( 'searchindex' );
24 echo "Rebuild the index...\n";
25 $sql = "ALTER TABLE $searchindex ADD FULLTEXT si_title (si_title), " .
26 "ADD FULLTEXT si_text (si_text)";
27 $database->query($sql, "createTextIndex" );
30 function rebuildTextIndex( &$database )
32 extract( $database->tableNames( 'cur', 'searchindex' ) );
34 $sql = "SELECT MAX(cur_id) AS count FROM $cur";
35 $res = $database->query($sql, "rebuildTextIndex" );
36 $s = $database->fetchObject($res);
38 echo "Rebuilding index fields for {$count} pages...\n";
41 while ( $n < $count ) {
43 $end = $n + RTI_CHUNK_SIZE - 1;
44 $sql = "SELECT cur_id, cur_namespace, cur_title, cur_text FROM $cur WHERE cur_id BETWEEN $n AND $end";
45 $res = $database->query($sql, "rebuildTextIndex" );
47 while( $s = $database->fetchObject($res) ) {
48 $u = new SearchUpdate( $s->cur_id, $s->cur_title, $s->cur_text );
51 $database->freeResult( $res );