- $db = $this->getDB( DB_MASTER );
- $start = $db->selectField( $table, "MIN($idCol)", false, __METHOD__ );
- $end = $db->selectField( $table, "MAX($idCol)", false, __METHOD__ );
+ $dbr = $this->getDB( DB_REPLICA );
+ $dbw = $this->getDB( DB_MASTER );
+ $start = $dbw->selectField( $table, "MIN($idCol)", false, __METHOD__ );
+ $end = $dbw->selectField( $table, "MAX($idCol)", false, __METHOD__ );