Thread: pgsql: Advance multiple array keys rightmost-first instead of

pgsql: Advance multiple array keys rightmost-first instead of

From

tgl@postgresql.org (Tom Lane)

Date:

18 March 2008, 03:54:57

Log Message:
-----------
Advance multiple array keys rightmost-first instead of leftmost-first
during a bitmap index scan.  This cannot affect the query results
(since we're just dumping the TIDs into a bitmap) but it might offer
some advantage in locality of access to the index.  Per Greg Stark.

Modified Files:
--------------
    pgsql/src/backend/executor:
        nodeIndexscan.c (r1.125 -> r1.126)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeIndexscan.c?r1=1.125&r2=1.126)