Andreas Joseph Krogh schrieb am 06.01.2022 um 13:28:
Hi, in PG-14 this query returns "value" (with double-quotes):
SELECT ('{"key":"value"}'::jsonb)['key'];
┌─────────┐
│ jsonb │
├─────────┤
│ "value" │
└─────────┘
(1 row)
and this returns 'value' (without the quotes):
SELECT ('{"key":"value"}'::jsonb)->> 'key';
┌──────────┐
│ ?column? │
├──────────┤
│ value │
└──────────┘
(1 row)
Unfortunately there isn't a direct cast from jsonb to text, but the #>>
operator can be (mis)used for this:
SELECT ('{"key":"value"}'::jsonb)['key'] #>> '{}'
you can put that into a function if you need that frequently.
