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Date: Thu, 20 Jun 2013 03:40:57 -0700 (PDT)
From: gmb <gmbouwer@gmail.com>
To: pgsql-sql@postgresql.org
Message-ID: <1371724857304-5760087.post@n5.nabble.com>
Subject: UNNEST result order vs Array data
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Hi all
I just want to confirm something regarding UNNEST function used with arrays.
I cannot see that it is specifically mentioned in the documentation , but
maybe because it is obvious.

Is the order of the result guaranteed to be the order of the array

I.e. is it possible that:
SELECT UNNEST( ARRAY[1,2,3] )

will sometimes return:
 unnest
--------
      2
      1
      3
(3 rows)

instead of:
 unnest
--------
      1
      2
      3
(3 rows)

Help will be appreciated



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