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Re: [PATCH] Exorcise "zero-dimensional" arrays (Was: Re: Should array_length() Return NULL) - Mailing list pgsql-hackers

From Josh Berkus
Subject Re: [PATCH] Exorcise "zero-dimensional" arrays (Was: Re: Should array_length() Return NULL)
Date
Msg-id 51B8BA39.2090404@agliodbs.com
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In response to [PATCH] Exorcise "zero-dimensional" arrays (Was: Re: Should array_length() Return NULL)  (Brendan Jurd <direvus@gmail.com>)
Responses Re: [PATCH] Exorcise "zero-dimensional" arrays (Was: Re: Should array_length() Return NULL)
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On 06/12/2013 11:01 AM, Tom Lane wrote:

> Arguably, the only thing wrong with multidim arrays is that they're not
> what the SQL standard asks for.  However, the original point in this
> thread was that we have some very bizarre corner-case behavior for empty
> arrays.  I'm going to be disappointed if all we can get out of this is
> a cardinality() function, and nothing is done about the empty-array
> semantics.

Well, we can't change the zero-dim behavior without breaking backwards
compatibility.  And enough people piled on to say NO to that, that it
went by the wayside.

-- 
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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