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cardinality()
- From: Andrew Dunstan <andrew(at)dunslane(dot)net>
- To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
- Subject: cardinality()
- Date: Sat, 28 Feb 2009 19:52:05 -0500
- Message-id: <49A9DC35.40304@dunslane.net> <text/plain>
We seem to have acquired a cardinality() function with almost no discussion, and it has semantics that are a bit surprising to me. I should have thought cardinality(array) would be the total number of elements in the array. Instead, it seems it is a synonym for array_length(array,1). Is that *really* what the standard says?
cheers andrew
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