From: | "Vadim B(dot) Mikheev" <vadim(at)sable(dot)krasnoyarsk(dot)su> |
---|---|
To: | James Hughes <jamesh(at)interpath(dot)com> |
Cc: | Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>, PgSQL Hackers <hackers(at)postgreSQL(dot)org> |
Subject: | Re: [HACKERS] VACUUM ANALYZE Problem |
Date: | 1998-02-03 05:09:27 |
Message-ID: | 34D6A687.8F8BB655@sable.krasnoyarsk.su |
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Lists: | pgsql-hackers |
James Hughes wrote:
>
> After poking arround some more, I found that the "vacuum analyze" is
> causing problems with the "<" and ">" operators. The "> 0" in the SELECT
> for "/d <table>" and "/dS" commands in psql cause the error.
>
> I verified that any simple query using the "<" or ">" operators fail
> with the same message...
Analyze uses oper("=",...), oper("<",...) and oper(">",...)...
Are queries with "=" OK ?
>
> ERROR: fmgr_info: function 0: cache lookup failed
>
> ...after using the "vacuum analyse" command.
> But, only after vacuuming any relation that was created and populated by
> me. Vacumming system catalogs poses no problems.
There are comments into vc_updstats:
/*
* invalidating system relations confuses the function cache of
* pg_operator and pg_opclass
*/
if (!IsSystemRelationName(pgcform->relname.data))
RelationInvalidateHeapTuple(rd, rtup);
==> invalidation of user relation causes problems too, Bruce ?
Vadim
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