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pgsql-server/src backend/access/nbtree/nbtinse ...

From: tgl(at)svr1(dot)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql-server/src backend/access/nbtree/nbtinse ...
Date: 2003-12-21 01:23:07
Message-ID: 20031221012307.0759ED1B45B@svr1.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
CVSROOT:	/cvsroot
Module name:	pgsql-server
Changes by:	tgl(at)svr1(dot)postgresql(dot)org	03/12/20 21:23:06

Modified files:
	src/backend/access/nbtree: nbtinsert.c nbtpage.c nbtsearch.c 
	src/include/access: nbtree.h 

Log message:
	Improve btree's initial-positioning-strategy code so that we never need
	to step more than one entry after descending the search tree to arrive at
	the correct place to start the scan.  This can improve the behavior
	substantially when there are many entries equal to the chosen boundary
	value.  Per suggestion from Dmitry Tkach, 14-Jul-03.


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