>>>>> "David" == "David E Wheeler" <[email protected]> writes:
>> select ('a=>1,b=>2,c=>3'::hstore) -> ARRAY['a','b'];
>> -- returns '{1,2}'
>>
>> select ('a=>1,b=>2,c=>3'::hstore) => ARRAY['a','b'];
>> -- returns 'a=>1,b=>2'
>>
>> (by analogy to the existing operators -> for lookup and => for
>> construction)
David> Is a more Perlish syntax out of the question?
Yes. Sorry.
David> SELECT ('a=>1,b=>2,c=>3'::hstore)['a', 'b'];
David> -- returns '{1,2}'
That would require integrating hstore into core - array subscripting
isn't a user-definable operation.
David> select ('a=>1,b=>2,c=>3'::hstore){'a','b'};
David> -- returns 'a=>1,b=>2'
And that would require changing the parser...
--
Andrew (irc:RhodiumToad)
--
Sent via pgsql-hackers mailing list ([email protected])
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers
