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

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Kris Jurka <books (AT) ejurka (DOT) com> writes:
This is not a bug, it's extensibility ;-)

regards, tom lane

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