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Thread: aggregates other than count accpet *

aggregates other than count accpet *

From
Kris Jurka
Date:
PostgreSQL allows aggregates other than COUNT to accept * as the arugment.
Combined with the transformation of * -> 1 you get odd results from SELECT
MIN(*), MAX(*) FROM tab; instead of an error.

Kris Jurka

Re: aggregates other than count accpet *

From
Tom Lane
Date:
Kris Jurka <books@ejurka.com> writes:
> PostgreSQL allows aggregates other than COUNT to accept * as the arugment.

This is not a bug, it's extensibility ;-)

            regards, tom lane