Re: proposal: schema variables

Pavel Stehule <pavel.stehule@gmail.com>

From: Pavel Stehule <pavel.stehule@gmail.com>

To: DUVAL REMI <REMI.DUVAL@cheops.fr>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2020-03-13T18:44:33Z

Lists: pgsql-hackers, pgsql-performance

Commits

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

Move WAL sequence code into its own file
- a87987cafca6 19 (unreleased) cited
Add ExplainState argument to pg_plan_query() and planner().
- c83ac02ec730 19 (unreleased) cited
Don't include access/htup_details.h in executor/tuptable.h
- 1a8b5b11e48a 19 (unreleased) cited
Refactor to avoid code duplication in transformPLAssignStmt.
- b0fb2c6aa5a4 19 (unreleased) cited
Avoid including commands/dbcommands.h in so many places
- 325fc0ab14d1 19 (unreleased) cited
Restrict psql meta-commands in plain-text dumps.
- 71ea0d679543 19 (unreleased) cited
Split func.sgml into more manageable pieces
- 4e23c9ef65ac 19 (unreleased) cited
Fix squashing algorithm for query texts
- 0f65f3eec478 18.0 cited
EXPLAIN: Always use two fractional digits for row counts.
- 95dbd827f2ed 18.0 cited
Preliminary refactoring of plpgsql expression construction.
- a654af21ae52 18.0 cited
plpgsql: pure parser and reentrant scanner
- 7b27f5fd36cb 18.0 cited
Add some sanity checks in executor for query ID reporting
- 24f520594809 18.0 cited
Fix misleading error message context
- 4af123ad45bd 18.0 cited
Add macros for looping through a List without a ListCell.
- 14dd0f27d7cd 17.0 cited

Attachments

schema-variables-20200313.patch.gz (application/gzip) patch

Hi

ne 8. 3. 2020 v 19:12 odesílatel Pavel Stehule <pavel.stehule@gmail.com>
napsal:

>
>
> so 7. 3. 2020 v 22:15 odesílatel Pavel Stehule <pavel.stehule@gmail.com>
> napsal:
>
>> Hi
>>
>> I fixed the some ugly parts of this patch - now the LET x = DEFAULT, LET
>> x = NULL is processed by more usual way.
>> Statement LET is doesn't switch between STMT_UTILITY and
>> STMT_PLAN_UTILITY like before. It is only STMT_PLAN_UTILITY statement.
>>
>
> I did some cleaning - I mainly replaced CMD_PLAN_UTILITY by CMD_LET
> because there is not another similar statement in queue.
>

 another cleaning - I repleaced CMD_LET by CMD_SELECT_UTILITY. This name is
more illustrative, and little bit cleaned code.

CMD_SELECT_UTILITY is mix of CMD_SELECT and CMD_UTILITY. It allows PREPARE
and parametrizations like CMD_SELECT. But execution is like CMD_UTILITY by
own utility routine with explicit dest receiver setting. This design
doesn't need to introduce new executor and planner nodes (like ModifyTable
and ModifyTablePath).

Regards

Pavel



> Regards
>
> Pavel
>
>
>> Regards
>>
>> Pavel
>>
>