Re: Prepared statements fail after schema changes with surprising error

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dimitri Fontaine <dimitri@2ndQuadrant.fr>
Cc: Peter van Hardenberg <pvh@pvh.ca>, Peter Geoghegan <peter.geoghegan86@gmail.com>, "pgsql-hackers\@postgresql.org Hackers" <pgsql-hackers@postgresql.org>
Date: 2013-01-22T18:22:01Z
Lists: pgsql-hackers
Dimitri Fontaine <dimitri@2ndQuadrant.fr> writes:
> Tom Lane <tgl@sss.pgh.pa.us> writes:
>>> DROP SCHEMA public;
>>> CREATE SCHEMA public;
>> changes the OID of schema public, whereas the search_path that's cached
>> for the cached plan is cached in terms of OIDs.  So while there is a
>> table named public.z1 at the end of the sequence, it's not in any schema
>> found in the cached search path.

> The DROP SCHEMA should invalidate the cached plan, certainly?

It does not; see my reply to Robert.

			regards, tom lane