"Golden Liu" <[EMAIL PROTECTED]> writes: > ... The first update DOES insert index entries into unique_key's index.
Right, but weren't you proposing to make it not do so?
regards, tom lane
---------------------------(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
