Re: SQL/JSON features for v15

On 8/31/22 8:38 AM, Andrew Dunstan wrote:
> 
> On 2022-08-31 We 07:01, Amit Langote wrote:
>> On Wed, Aug 31, 2022 at 3:51 PM Amit Langote <amitlangote09@gmail.com> wrote:
>>>   SELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING int DEFAULT 111 ON ERROR);
>>> - json_value
>>> -------------
>>> -        111
>>> -(1 row)
>>> -
>>> +ERROR:  syntax error at or near "DEFAULT"
>>> +LINE 1: ...ELECT JSON_VALUE(jsonb '"aaa"', '$' RETURNING int DEFAULT 11...
>>>
>>> Is it intentional that you left many instances of the regression test
>>> output changes like the above?
>> Actually, thinking more about this, I am wondering if we should not
>> remove the DEFAULT expression productions in gram.y.  Maybe we can
>> keep the syntax and give an unsupported error during parse-analysis,
>> like the last version of the patch did for DEFAULT ON EMPTY.  Which
>> also means to also leave JsonBehavior alone but with default_expr
>> always NULL for now.
>>
> 
> Producing an error in the parse analysis phase seems best to me.

Andres, Robert, Tom: With this recent work, have any of your opinions 
changed on including SQL/JSON in v15?

Thanks,

Jonathan