From: andrew@tao11.riddles.org.uk
To: pgsql-bugs@postgresql.org
Subject: BUG #14487: malformed empty array from array_fill
Date: Thu, 05 Jan 2017 15:21:56 +0000
Message-ID: <20170105152156.10135.64195@wrigleys.postgresql.org> (raw)
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The following bug has been logged on the website:
Bug reference: 14487
Logged by: Andrew Gierth
Email address: andrew@tao11.riddles.org.uk
PostgreSQL version: 9.6.1
Operating system: any
Description:
array_fill returns a malformed empty array when given a size of zero:
select a, a = '{}' from (select array_fill(null::integer, array[0]) as a)
s;
a | ?column?
----+----------
{} | f
The result actually has ndims=1 and a length of 0, which can be checked with
array_length(a,1).
Obvious fix is to move the fast-track empty result to after computing
nitems?
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To: pgsql-bugs@postgresql.org
Cc: andrew@tao11.riddles.org.uk
Subject: Re: BUG #14487: malformed empty array from array_fill
In-Reply-To: <20170105152156.10135.64195@wrigleys.postgresql.org>
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