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Re: SQL/JSON: functions

Oleg Bartunov <obartunov@gmail.com>

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From: Oleg Bartunov <obartunov@gmail.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: Nikita Glukhov <n.gluhov@postgrespro.ru>, PostgreSQL mailing lists <pgsql-hackers@postgresql.org>, Andrew Dunstan <andrew.dunstan@2ndquadrant.com>, Pavel Stehule <pavel.stehule@gmail.com>
Date: 2018-03-13T13:08:01Z
Lists: pgsql-hackers 
On Tue, Mar 13, 2018 at 2:04 PM, Simon Riggs <simon@2ndquadrant.com> wrote:
> On 7 March 2018 at 14:34, Nikita Glukhov <n.gluhov@postgrespro.ru> wrote:
>
>> Attached 12th version of SQL/JSON patches rebased onto the latest master.
>
> Please write some docs or notes to go with this.
>
> If you drop a big pile of code with no explanation it will just be ignored.
>
> I think many people want SQL/JSON, but the purpose of a patch
> submission is to allow a committer to review and commit without
> needing to edit anything. It shouldn't be like assembling flat pack
> furniture while wearing a blindfold.

The docs are here
https://github.com/obartunov/sqljsondoc/blob/master/README.jsonpath.md

It's not easy to write docs for SQL/JSON in xml, so I decided to write in more
friendly way. We'll have time to convert it to postgres format.


>
> --
> Simon Riggs                http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. JSON_TABLE: Add support for NESTED paths and columns

  2. Add basic JSON_TABLE() functionality

  3. Add SQL/JSON query functions

  4. Add soft error handling to some expression nodes

  5. Adjust populate_record_field() to handle errors softly

  6. Refactor code used by jsonpath executor to fetch variables

  7. Add more SQL/JSON constructor functions

  8. SQL/JSON: support the IS JSON predicate

  9. SQL/JSON: add standard JSON constructor functions

  10. Improve readability of SQL/JSON documentation.

  11. Documentation for SQL/JSON features

  12. RETURNING clause for JSON() and JSON_SCALAR()

  13. SQL JSON functions

  14. SQL/JSON query functions

  15. IS JSON predicate

  16. SQL/JSON constructors

  17. Common SQL/JSON clauses

  18. Doc: remove obsolete entries in table of BRIN strategy numbers.

  19. Doc: standardize markup a bit more.

  20. Make pg_regress.c unset PGDATABASE during make installcheck.

  21. Fix handling of GENERATED columns in CREATE TABLE LIKE INCLUDING DEFAULTS.