Tim Kane <[email protected]> writes:
> I decided to have a play with postgresql-9.4devel as I wanted to explore the
> functionality provided by
> unnest (anyarray, anyarray [, â¦])
> Iâve taken the nightly snpahost, compiled, installed.. All good. (Obtained
> from http://ftp.postgresql.org/pub/snapshot/dev/ )
> However it seems the expected multi-argument unnest function doesnât exist.
> Have I missed something?
It's there:
regression=# select * from unnest(array[1,2], array[3,4]);
unnest | unnest
--------+--------
1 | 3
2 | 4
(2 rows)
If you were expecting this to change, it didn't:
regression=# \df unnest
List of functions
Schema | Name | Result data type | Argument data types | Type
------------+--------+------------------+---------------------+--------
pg_catalog | unnest | SETOF anyelement | anyarray | normal
(1 row)
because the new functionality arises from a parser transformation,
not from a simple function.
regards, tom lane
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