Обсуждение: jsonb creation functions?

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jsonb creation functions?

От
Larry White
Дата:
There is a set of creation functions for json, such as:

 to_json(anyelement)

There doesn't seem to be any equivalent functions for converting text to jsonb. 

Is there a way to do this?

Thanks.

Re: jsonb creation functions?

От
Christoph Moench-Tegeder
Дата:
Hi,

> There is a set of creation functions for json, such as:
>
>  to_json(anyelement)
>
> There doesn't seem to be any equivalent functions for converting text to
> jsonb.
>
> Is there a way to do this?

You can always cast json to jsonb:
test_db=# create table t (a integer primary key, b jsonb);
CREATE TABLE
test_db=# insert into t (a, b) values (1, to_json('a'::text)::jsonb);
INSERT 0 1
test_db=# select * from t;
 a |  b
---+-----
 1 | "a"
(1 row)

test_db=# insert into t (a, b) values (2, to_json('{"a","b","c"}'::text[])::jsonb);
INSERT 0 1
test_db=# select * from t;
 a |        b
---+-----------------
 1 | "a"
 2 | ["a", "b", "c"]
(2 rows)

Regards,
Christoph

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