Robert Haas <robertmhaas@gmail.com> writes:
> 2010/6/28 KaiGai Kohei <kaigai@ak.jp.nec.com>:
>> * at the RenameSchema()
> This looks like another syscache reference leak.
Actually that one *is* a leak, although it doesn't matter much because
the leak occurs only in an error path, so transaction abort will clean
up the leaked reference. Still, it's sucky coding style:
SearchSysCacheExists should have been used.
I'm not sure I agree that replacing SearchSysCacheExists calls (or
things that should have been SearchSysCacheExists calls) with
OidIsValid(get_whatever_oid()) is an improvement. The Exists call
tells what you're actually trying to accomplish. The other way is
an overspecification of the required result.
regards, tom lane