> just small correction here...expressions like that in the create index
> need an extra set of parens (but I agree with your sentiment):
> CREATE INDEX dokindex ON dok ((kuupaeve||kellaaeg))
I tried
CREATE INDEX dok_kuupaev_kellaaeg_idx ON dok ((kuupaev||kellaaeg));
but got error
ERROR: functions in index expression must be marked IMMUTABLE
SQL state: 42P17
How to create such index ?
Andrus.
---------------------------(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
