adeven/pg-numhstore — pull request #11 by rapimo (2013-11-07 13:15:29+00:00)
Title: change / operator behaviour

this changes hstore division

```SQL
SELECT 'a=>3, b=>2'::inthstore / 'a=>2, b=>5'::inthstore;
?column?
----------------------------------------------------------
"a"=>"1.5000000000000000", "b"=>"0.40000000000000000000"
(1 row)

SELECT 'a=>3, b=>2'::inthstore / 'a=>2, b=>2, c=>5'::inthstore;
?column?
---------------------------------------------------------------------
"a"=>"1.5000000000000000", "b"=>"1.00000000000000000000", "c"=>NULL
(1 row)

SELECT 'a=>3, b=>2, c=>5'::inthstore / 'a=>2, b=>2'::inthstore;
ERROR: Keys of the numerator doesn't match denominator.
DETAIL: extra keys are {c}
HINT: You may want to slice before
```