From: | Jean Louis <bugs(at)gnu(dot)support> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org> |
Subject: | Re: how to concat/concat_ws all fields without braces |
Date: | 2019-06-15 14:20:38 |
Message-ID: | 20190615142038.GJ10179@protected.rcdrun.com |
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Thread: | |
Lists: | pgsql-general |
Dear Pavel,
Ahoj.
* Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> [2019-06-15 11:37]:
> you can write own function that will do what you want
>
> create or replace function rec_concat_fields(record, text)
> returns text as $$
> begin
> return string_agg(value, '|') from json_each_text(row_to_json($1));
> end
> $$ language plpgsql;
>
> postgres=# select rec_concat_fields(foo.*, '*') from foo;
> ┌───────────────────┐
> │ rec_concat_fields │
> ╞═══════════════════╡
> │ ahoj|svete │
> └───────────────────┘
> (1 row)
>
I have tried that one, not working quite;
create or replace function concat_fields(record, text)
returns text as $$
begin
return string_agg(value, ' ') from json_each_text(row_to_json($1));
end
$$ language plpgsql;
rcdbusiness$# ERROR: PL/pgSQL functions cannot accept type record
Jean
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