* and to find new page edits by users.
*/
-define( 'BATCH_SIZE', 500 );
+define( 'BATCH_SIZE', 200 );
require_once 'commandLine.inc';
echo "Populating rev_parent_id column\n";
$start = $db->selectField( 'revision', 'MIN(rev_id)', false, __FUNCTION__ );
$end = $db->selectField( 'revision', 'MAX(rev_id)', false, __FUNCTION__ );
+ # Do remaining chunk
+ $end += BATCH_SIZE - 1;
$blockStart = $start;
$blockEnd = $start + BATCH_SIZE - 1;
$count = 0;
+ $changed = 0;
while( $blockEnd <= $end ) {
+ echo "...doing rev_id from $blockStart to $blockEnd\n";
$cond = "rev_id BETWEEN $blockStart AND $blockEnd";
- $res = $db->select( 'revision', array('rev_id','rev_page'), $cond, __FUNCTION__ );
+ $res = $db->select( 'revision',
+ array('rev_id','rev_page','rev_timestamp','rev_parent_id'),
+ $cond, __FUNCTION__ );
# Go through and update rev_parent_id from these rows.
# Assume that the previous revision of the title was
# the original previous revision of the title when the
# edit was made...
foreach( $res as $row ) {
$previousID = $db->selectField( 'revision', 'rev_id',
- array( 'rev_page' => $row->rev_page, "rev_id < '{$row->rev_id}'" ),
+ array( 'rev_page' => $row->rev_page, "rev_timestamp < '{$row->rev_timestamp}'" ),
__FUNCTION__,
- array( 'ORDER BY' => 'rev_id DESC' ) );
+ array( 'ORDER BY' => 'rev_timestamp DESC' ) );
+ $previousID = intval($previousID);
+ if( $previousID != $row->rev_parent_id )
+ $changed++;
# Update the row...
$db->update( 'revision',
- array( 'rev_parent_id' => intval($previousID) ),
+ array( 'rev_parent_id' => $previousID ),
array( 'rev_id' => $row->rev_id ),
__FUNCTION__ );
$count++;
}
- $blockStart += BATCH_SIZE;
- $blockEnd += BATCH_SIZE;
+ $blockStart += BATCH_SIZE - 1;
+ $blockEnd += BATCH_SIZE - 1;
wfWaitForSlaves( 5 );
}
$logged = $db->insert( 'updatelog',
__FUNCTION__,
'IGNORE' );
if( $logged ) {
- echo "rev_parent_id population complete ... {$count} rows\n";
+ echo "rev_parent_id population complete ... {$count} rows [{$changed} changed]\n";
return true;
} else {
echo "Could not insert rev_parent_id population row.\n";