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

From Tom Lane
Subject Re: [PATCH] Exorcise "zero-dimensional" arrays (Was: Re: Should array_length() Return NULL)
Date
Msg-id 12501.1364221706@sss.pgh.pa.us
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In response to Re: [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)  (Craig Ringer <craig@2ndquadrant.com>)
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Brendan Jurd <direvus@gmail.com> writes:
> On 26 March 2013 00:30, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> No, it *isn't* a good idea.  GUCs that change application-visible
>> semantics are dangerous.  We should have learned this lesson by now.

> They are?

Yeah, they are, because things break when they're set wrong.

Sometimes we have to have one anyway, but AFAICS this patch is just
proposing to change corner cases that most apps don't hit.  I think
we'd be better off without a knob for it.
        regards, tom lane

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