Re: Add json_object(text[], json[])?
От | Paul Jungwirth |
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Тема | Re: Add json_object(text[], json[])? |
Дата | |
Msg-id | 7f99e6b8-1823-7738-2788-e97105d906af@illuminatedcomputing.com обсуждение исходный текст |
Ответ на | Re: Add json_object(text[], json[])? (Andrew Dunstan <andrew.dunstan@2ndquadrant.com>) |
Список | pgsql-hackers |
On 10/25/19 6:40 AM, Andrew Dunstan wrote: > json{b}_build_object and json{b}_build_array are designed for creating > nested json{b}. Not sure if they would work for your purpose. Thanks for the suggestion! I looked at these a bit, but they only work if you have a known-ahead-of-time number of arguments. (I did explore building an array and calling jsonb_build_object using VARIADIC, but you can't build an array with alternating text & jsonb elements. That made me curious how these functions even worked, which led me to extract_variadic_args (utils/fmgr/funcapi.c), which has some magic to support heterogeneous types when not called with the VARIADIC keyword, so it seems they bypass the normal variadic handling.) Regards, -- Paul ~{:-) pj@illuminatedcomputing.com
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