Adrian Klaver <adrian.klaver@aklaver.com> writes:
>> In Postgres 17 trying to create the function yields an error:
>>
>> pg17> create function json_test(out value text, out json jsonb)
>> returns record
>> ...
>> ERROR: syntax error at or near "jsonb"
>> LINE 1: create function json_test(out value text, out json jsonb)
>>
>> Am I doing something wrong? Or is this a regression?
> Yes you are doing something wrong, naming an argument with a type
> name(json) is not a good idea.
The actual problem is that the SQL standards committee invented
some bizarre syntax that we couldn't parse without making JSON
a partially-reserved word. It still works as a type name, but
in this particular syntax where it's not initially clear which
names are type names, you lose. Double-quote the argument name,
or name it something other than "json".
regards, tom lane
