On Wed, 19 Oct 2005, Dann Corbit wrote: > Yes, clearly that is the wrong result according to the SQL standard. > > Here is a SQL*Server query: > select 1 where 'a' = 'a ' AND 'a' = 'a ' AND 'a ' = 'a ' > > It returns (correctly): 1 Doesn't that depend on the collating sequence in use, or is a NO PAD collating sequence not allowed here? ---------------------------(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