The following bug has been logged online:
Bug reference: 6087
Logged by: Maxim Boguk
Email address: maxim.bo...@gmail.com
PostgreSQL version: 9.0
Operating system: Linux
Description: Unnest with multidimensional arrays
Details:
I not sure is it actual bug or intended behaviour.
In documentation unnest described as:
"expand an array to a set of rows".
However in case of multidimensional arrays documentation is misleading or
actual behaviour is wrong.
Test case:
postgres=# select unnest(array[[1,2], [3,4], [5,6]]);
unnest
--------
1
2
3
4
5
6
(6 rows)
I think correct result must be:
unnest
------------
{1,2}
{3,4}
{5,6}
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