| From: | Cédric Villemain <cedric(dot)villemain(dot)debian(at)gmail(dot)com> |
|---|---|
| To: | Thom Brown <thom(at)linux(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: NULLs in array_cat vs array || array |
| Date: | 2011-02-15 21:46:09 |
| Message-ID: | AANLkTinX0AmpYWr0j1hutgftxaFDbObx+K8OT3o0K1D5@mail.gmail.com |
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| Lists: | pgsql-hackers |
2011/2/15 Thom Brown <thom(at)linux(dot)com>:
> Hi all,
>
> I assumed array_cat would behave similarly to array || array, but it
> appears not when it comes to NULLs. Shouldn't these have identical
> functionality? The attached patch makes it so, although it would
> break existing code.
There is bugreport and todo entry for that if it helps:
http://archives.postgresql.org/pgsql-bugs/2008-11/msg00032.php
>
> Would such a change have any knock-on effect, or cause inconsistency
> with other functions?
>
> Thanks
>
> Thom
>
> --
> Thom Brown
> Twitter: @darkixion
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> Registered Linux user: #516935
>
>
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>
--
Cédric Villemain 2ndQuadrant
http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support
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