Re: [HACKERS] VACUUM ANALYZE Problem - Mailing list pgsql-hackers

OK, I have looked at this, but can't figure out how to fix the many
initializations of ScanKeyData.  Can someone who understands this please
submit a patch for all these initializations so we can stop these vacuum
analyze reports?

Vadim has found the problem, but we need someone to properly fix it.

> 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...
> >
> >         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.
>
> Well, I found that this problem was caused by selfuncs.c:gethilokey():
>
>     static ScanKeyData key[3] = {
>         {0, Anum_pg_statistic_starelid, F_OIDEQ},
>         {0, Anum_pg_statistic_staattnum, F_INT2EQ},
>         {0, Anum_pg_statistic_staop, F_OIDEQ}
>
> : skankeys are hardcoded without call to ScanKeyEntryInitialize() =>
> without initialization of sk_func.fn_oid required, I assume, by
> new PL support code. Patch for this place follows...
> One should check all places where ScanKeyData is used.
> Jan, could you do this ?
>
> (Oh, hell! I got this ERROR while testing subselect and spent so many time
> to fix this problem...)
>
> Vadim
> --------------A99EE0A2D8F4D665C5BF3957
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> --------------A99EE0A2D8F4D665C5BF3957--
>
>


--
Bruce Momjian
maillist@candle.pha.pa.us