The following bug has been logged on the website:
Bug reference: 7730
Logged by: elein
Email address: el...@varlena.com
PostgreSQL version: 9.2.1
Operating system: Linux
Description:
select NULLIF('{1,2,3}'::integer[] - '{3,2,1}'::integer[], '{}'::integer[]);
This returns an empty array. It should return NULL.
Per RhodiumToad: the core code represents '{}' as an array with 0
dimensions, whereas intarray represents it as an array with 1 dimension but
0 elements
intarray should use the same standards as the core code if possible. I
peered at the code and don't see anything untoward but did not have time to
spend on it.
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