pgsql-server/src/backend/access/nbtree nbtinsert.c

Started by Tom Lanealmost 23 years ago1 messagescomitters
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#1Tom Lane
tgl@sss.pgh.pa.us

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@svr1.postgresql.org 03/09/02 19:10:17

Modified files:
src/backend/access/nbtree: nbtinsert.c

Log message:
In _bt_check_unique() loop, don't bother applying _bt_isequal() to
killed items; just skip to the next item immediately. Only check for
key equality when we reach a non-killed item or the end of the index
page. This saves key comparisons when there are lots of killed items,
as for example in a heavily-updated table that's not been vacuumed lately.
Seems to be a win for pgbench anyway.