On Wed, 5 Mar 2003 [EMAIL PROTECTED] wrote: > > Hi all, > I have a Blacklist table containing about 1000 ID to delete from another > table (T1 about 1440294 records) > If i use the SQL > > DELETE FROM T1 WHERE T1.ID IN (SELECT BLACKLIST.ID FROM BLACKLIST) > > the operation is very slow . > > There is a faster way to do the same operation?? use EXISTS > > Thanks > Luca > > > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED] >
-- ================================================================== Achilleus Mantzios S/W Engineer IT dept Dynacom Tankers Mngmt Nikis 4, Glyfada Athens 16610 Greece tel: +30-210-8981112 fax: +30-210-8981877 email: [EMAIL PROTECTED] [EMAIL PROTECTED] ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org