Centuries ago, Nostradamus foresaw when [EMAIL PROTECTED] (Kenneth Gonsalves) would write: > On Tuesday 20 January 2004 19:26, Chris Bowlby wrote: >> Under 7.3.x this option was removed, you need to test via: >> >> SELECT * from table where field IS NULL; > thanx - works in both 7.1 and 7.3 - why do these guys keep fooling around > with these thangs?
Because there is a desire to have PostgreSQL conform with public standards such as SQL-1999. The use of "IS NULL" conforms with SQL standards; the use of "= NULL" does not. -- If this was helpful, <http://svcs.affero.net/rm.php?r=cbbrowne> rate me http://www3.sympatico.ca/cbbrowne/advocacy.html "Let's face it -- ASCII text is a far richer medium than most of us deserve." -- Scott McNealy ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
