*/
function PurgeRedundantText( $delete = false ) {
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+
# Data should come off the master, wrapped in a transaction
$dbw = wfGetDB( DB_MASTER );
$dbw->begin();
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+
$tbl_arc = $dbw->tableName( 'archive' );
$tbl_rev = $dbw->tableName( 'revision' );
$tbl_txt = $dbw->tableName( 'text' );
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# Get "active" text records from the revisions table
echo( "Searching for active text records in revisions table..." );
$res = $dbw->query( "SELECT DISTINCT rev_text_id FROM $tbl_rev" );
$cur[] = $row->rev_text_id;
}
echo( "done.\n" );
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+
# Get "active" text records from the archive table
echo( "Searching for active text records in archive table..." );
$res = $dbw->query( "SELECT DISTINCT ar_text_id FROM $tbl_arc" );
$cur[] = $row->ar_text_id;
}
echo( "done.\n" );
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+
# Get the IDs of all text records not in these sets
echo( "Searching for inactive text records..." );
$set = implode( ', ', $cur );
$old[] = $row->old_id;
}
echo( "done.\n" );
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+
# Inform the user of what we're going to do
$count = count( $old );
echo( "$count inactive items found.\n" );
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# Delete as appropriate
if ( $delete && $count ) {
echo( "Deleting..." );
$dbw->query( "DELETE FROM $tbl_txt WHERE old_id IN ( $set )" );
echo( "done.\n" );
}
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# Done
$dbw->commit();
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+
}