Description of the illustration strms013.eps

This illustration shows an apply process dequeuing LCRs and messages from the queue and either applying LCRs directly or passing messages to an apply handler. The apply handlers include a message handler procedure to process user messages, a procedure DML handler to process row LCRs, a DDL handler procedure to process DDL LCRs, a precommit handler to record commit information for LCRs or user messages, and a statement DML handler to process row LCRs.