Re: SQL/JSON: functions

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От Nikita Glukhov
Тема Re: SQL/JSON: functions
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Msg-id 5b0c37d4-9201-7596-dd39-663522b34b15@postgrespro.ru
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Ответ на Re: SQL/JSON: functions  (Michael Paquier <michael@paquier.xyz>)
Ответы Re: SQL/JSON: functions  (Zhihong Yu <zyu@yugabyte.com>)
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On 17.09.2020 08:41, Michael Paquier wrote:

On Sat, Jul 18, 2020 at 09:24:11AM -0400, Andrew Dunstan wrote:
I think patches 5 and 6 need to be submitted to the next commitfest,
This is far too much scope creep to be snuck in under the current CF item.

I'll look at patches 1-4.
Even with that, the patch set has been waiting on author for the last
six weeks, so I am marking it as RwF for now.  Please feel free to
resubmit.
Attached 51st version of the patches rebased onto current master.


There were some shift/reduce conflicts in SQL grammar that have appeared
after "expr AS keyword" refactoring in 06a7c3154f.  I'm not sure if I resolved
them correctly.  JSON TEXT pseudotype, introduced in #0006, caused a lot of
grammar conflicts, so it was replaced with simple explicit pg_catalog.json.

Also new CoercionForm COERCE_SQL_SYNTAX was introduced, and this reminds custom
function formats that I have used in earlier version of the patches for
deparsing of SQL/JSON constructor expressions that were based on raw json[b]
function calls.  These custom function formats were replaced in v43 with
dedicated executor nodes for SQL/JSON constructors.  So, I'm not sure is it
worth to try to replace back nodes with new COERCE_SQL_SYNTAX.

-- 
Nikita Glukhov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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