Обсуждение: can't cast hstore to json

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can't cast hstore to json

От
Joe Van Dyk
Дата:
I've got a postgresql 9.3.2 server, compiled from scratch. Getting this error:

# select hstore('a', 'b')::json;
ERROR:  cannot cast type hstore to json
LINE 1: select hstore('a', 'b')::json;
                               ^
# select array_to_json(array[hstore('a', 'b')]);
  array_to_json
------------------
 ["\"a\"=>\"b\""]
(1 row)

(I expected  [{"a": "b"}] )

I don't get this on other postgresql installations. Any ideas?

Joe

Re: can't cast hstore to json

От
Tom Lane
Дата:
Joe Van Dyk <joe@tanga.com> writes:
> I've got a postgresql 9.3.2 server, compiled from scratch. Getting this
> error:

> # select hstore('a', 'b')::json;
> ERROR:  cannot cast type hstore to json

Probably need to update the hstore extension to 1.2.

            regards, tom lane

Re: can't cast hstore to json

От
Joe Van Dyk
Дата:
On Thu, Mar 13, 2014 at 12:15 PM, Joe Van Dyk <joe@tanga.com> wrote:
I've got a postgresql 9.3.2 server, compiled from scratch. Getting this error:

# select hstore('a', 'b')::json;
ERROR:  cannot cast type hstore to json
LINE 1: select hstore('a', 'b')::json;
                               ^
# select array_to_json(array[hstore('a', 'b')]);
  array_to_json
------------------
 ["\"a\"=>\"b\""]
(1 row)

(I expected  [{"a": "b"}] )

I don't get this on other postgresql installations. Any ideas?

Joe

ALTER EXTENSION hstore UPDATE; fixed the problem. (thanks oicu!)