Re: gsoc, text search selectivity and dllist enhancments

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Jan Urbański <j(dot)urbanski(at)students(dot)mimuw(dot)edu(dot)pl>, Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>, Heikki Linnakangas <heikki(at)enterprisedb(dot)com>, Postgres - Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: gsoc, text search selectivity and dllist enhancments
Date: 2008-07-14 05:01:20
Message-ID: 20080714050120.GB21994@alvh.no-ip.org
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Tom Lane wrote:
> Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> > Should we have a CHECK_FOR_INTERRUPTS() call in the inner loop of
> > compute_tsvector_stats?
>
> Isn't the vacuum_delay_point() good enough?

But that's in the outer loop ... I mean here:

Index: src/backend/tsearch/ts_typanalyze.c
===================================================================
RCS file: /home/alvherre/Code/cvs/pgsql/src/backend/tsearch/ts_typanalyze.c,v
retrieving revision 1.1
diff -c -p -r1.1 ts_typanalyze.c
*** src/backend/tsearch/ts_typanalyze.c 14 Jul 2008 00:51:45 -0000 1.1
--- src/backend/tsearch/ts_typanalyze.c 14 Jul 2008 04:59:59 -0000
*************** compute_tsvector_stats(VacAttrStats *sta
*** 206,211 ****
--- 206,213 ----
{
bool found;

+ CHECK_FOR_INTERRUPTS();
+
/* Construct a hash key */
hash_key.lexeme = lexemesptr + curentryptr->pos;
hash_key.length = curentryptr->len;

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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