From 85d72f05167b87bc44464b2eabea8538f1fd1e45 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sat, 9 Jun 2007 18:49:55 +0000 Subject: Teach heapam code to know the difference between a real seqscan and the pseudo HeapScanDesc created for a bitmap heap scan. This avoids some useless overhead during a bitmap scan startup, in particular invoking the syncscan code. (We might someday want to do that, but right now it's merely useless contention for shared memory, to say nothing of possibly pushing useful entries out of syncscan's small LRU list.) This also allows elimination of ugly pgstat_discount_heap_scan() kluge. --- src/include/pgstat.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'src/include/pgstat.h') diff --git a/src/include/pgstat.h b/src/include/pgstat.h index ff050e6e45..da91033353 100644 --- a/src/include/pgstat.h +++ b/src/include/pgstat.h @@ -5,7 +5,7 @@ * * Copyright (c) 2001-2007, PostgreSQL Global Development Group * - * $PostgreSQL: pgsql/src/include/pgstat.h,v 1.61 2007/05/27 17:28:36 tgl Exp $ + * $PostgreSQL: pgsql/src/include/pgstat.h,v 1.62 2007/06/09 18:49:55 tgl Exp $ * ---------- */ #ifndef PGSTAT_H @@ -518,12 +518,6 @@ extern void pgstat_initstats(Relation rel); if (pgstat_collect_tuplelevel && (rel)->pgstat_info != NULL) \ (rel)->pgstat_info->t_counts.t_numscans++; \ } while (0) -/* kluge for bitmap scans: */ -#define pgstat_discount_heap_scan(rel) \ - do { \ - if (pgstat_collect_tuplelevel && (rel)->pgstat_info != NULL) \ - (rel)->pgstat_info->t_counts.t_numscans--; \ - } while (0) #define pgstat_count_heap_getnext(rel) \ do { \ if (pgstat_collect_tuplelevel && (rel)->pgstat_info != NULL) \ -- cgit v1.2.1