Deviations for protocol version 11
Request flushing can be deferred for ptype_batch_send
or higher.For ptype_lazy_send
, the response to op_free_statement
is deferred;it requires another operation on the connection before the response is sent.
For DSQL_drop
and DSQL_unprepare
, we recommend flushing immediately so the server at least processes the request, which will prevent longer than necessary retention of metadata locks.