When Adaptive Server performs DDL inside a transaction, Replication Agent must perform a backward scan in the primary transaction log. “Backward Schema” reports on these activities:
Count – number of times Replication Agent performed a backward scan.
Total Wait – length of time, in milliseconds, Replication Agent spent performing backward scans.
Longest Wait – longest length of time, in milliseconds, Replication Agent spent performing a backward scan.
Average Time – average length of time, in milliseconds, Replication Agent spent performing backward scans.
