wikimedia / mediawiki

				'rc_timestamp < ' . $dbw->addQuotes( $dbw->timestamp( $this->cutoffTo ) )

			]

		);

		foreach ( array_chunk( $rcids, $this->mBatchSize ) as $rcidBatch ) {

			$dbw->delete( 'recentchanges', [ 'rc_id' => $rcidBatch ], __METHOD__ );

			wfGetLBFactory()->waitForReplication();

		}

		$this->output( "Loading from page and revision tables...\n" );

		$res = $dbw->select(

					__METHOD__

				);

				foreach ( array_chunk( $rcids, $this->mBatchSize ) as $rcidBatch ) {

					$dbw->update(

						'recentchanges',

						[ 'rc_bot' => 1 ],

						[ 'rc_id' => $rcidBatch ],

						__METHOD__

					);

					wfGetLBFactory()->waitForReplication();

				}

			}

		}