From: | Laurence Rowe <l(at)lrowe(dot)co(dot)uk> |
---|---|
To: | PostgreSQL <pgsql-general(at)postgresql(dot)org> |
Subject: | json_array_elements_text? |
Date: | 2014-01-17 08:20:04 |
Message-ID: | CAOycyLQcR=Fr6QzLpe_AL10oVPxkpA-jA1jniZ7JuAsZsSf30w@mail.gmail.com |
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Lists: | pgsql-general |
Hello,
I'm trying to unpack a json array into it's constituent text values so I
can join them to a table. I can successfully unpack json values, but am
having trouble converting these to text so I can cast them to the UUIDs
needed for the join.
http://dba.stackexchange.com/questions/54283/how-to-turn-json-array-into-postgres-arraysuggest
using trim, and this does work:
SELECT trim(json_array_elements(biosample.properties->'treatments')::text,
'"')::uuid
FROM object biosample WHERE biosample.item_type = 'biosample'
But it seems kinda ugly. Am I missing something obvious or is postgres 9.3
just missing a json_array_elements_text function?
Laurence
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