pgsql-server/doc/src/sgml func.sgml

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: momjian@postgresql.org 03/02/18 22:12:23

Modified files:
doc/src/sgml : func.sgml

Log message:
This patch adds a note to the documentation describing why the
performance of min() and max() is slow when applied to the entire table,
and suggesting the simple workaround most experienced Pg users
eventually learn about (SELECT xyz ... ORDER BY xyz LIMIT 1).

Neil Conway