Hi,
I'd like to get an overlap function similar to '&&' but for key-value
pairs of hstore!
This underfits:
postgres=# select hstore_to_array('a=>1,b=>2,c=>3'::hstore) &&
hstore_to_array('a=>2,d=>4,b=>2'::hstore)
...because array overlaps op takes every element (even 'a' or 2 alone)
and doesn't test for key and value together like in 'b=>2'!
Any clever ideas?
Not tested!
SELECT hstore(array_agg(key), array_agg(value)) FROM (
SELECT each(...)
INTERSECT
SELECT each(...)
) src
David J.
