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Re: Strange array_to_table / unnest result

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Subject: Re: Strange array_to_table / unnest result
From: Johann Spies <johann.spies@xxxxxxxxx>
Date: Mon, 18 Jul 2016 09:52:38 +0200
Cc: "pgsql-general@xxxxxxxxxxxxxx" <pgsql-general@xxxxxxxxxxxxxx>
In-reply-to: <CAFj8pRBH_btXfodW==P8-yhHnvGi0fi+o8u1LFNhAQ_8hvt6=w@mail.gmail.com>

Unnest is evaluated before LIMIT
You need to use derived table

postgres=# select unnest(a) from (select a from x limit 1) si

Thank you!

Regards

Johann

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References:
- Strange array_to_table / unnest result
  - From: Johann Spies
- Re: Strange array_to_table / unnest result
  - From: Pavel Stehule

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