All the raws are updated if there is no WHERE clause. If you want the UPADATED rows, just specify the WHERE clause and it will really improve your performance...
EX : UPDATE itemp SET name = replace( name, 'abc', 'def' ) WHERE name LIKE '%abc%' ---------------------------------------------------------------------------- --------------- Patrick Fiche email : [EMAIL PROTECTED] tél : 01 69 29 36 18 ---------------------------------------------------------------------------- --------------- -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of CSN Sent: lundi 8 août 2005 09:33 To: pgsql-general@postgresql.org Subject: [GENERAL] Getting actual number of rows updated Is it possible to have PG report the actual number of rows that actually CHANGED in an update command? e.g. UPDATE items set name=replace(name,'abc','def'); UPDATE 9000 -- Actually only 3 were changed rather than update reporting all rows have been "updated"? Thanks, CSN ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
