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Re: Add Pipelining support in psql

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Anthonin Bonnefoy <anthonin.bonnefoy@datadoghq.com>
Cc: Jelte Fennema-Nio <postgres@jeltef.nl>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2025-02-25T01:11:13Z
Lists: pgsql-hackers 
On Fri, Feb 21, 2025 at 11:33:41AM +0900, Michael Paquier wrote:
> Attached are the remaining pieces, split here because they are
> different bullet points:
> - Tests for implicit transactions with various commands, with some
> edits. 
> - Prompt support, with more edits.
> 
> I'm putting these on standby for a few days, to let the buildfarm
> digest the main change.

Initial digestion has gone well.  The remaining pieces have been done
as 3ce357584e79 and a4e986ef5a46.  For the prompt part, I have added a
couple of tests with \echo and the variables.  The patch felt
incomplete without these.  Perhaps we could extend them more, at least
we have a start point.
--
Michael

Commits

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

  1. psql: Fix assertion failures with pipeline mode

  2. psql: Rework TAP routine psql_fails_like() to define WAL sender context

  3. psql: Split extended query protocol meta-commands in --help=commands

  4. psql: Improve descriptions of \\flush[request] in --help

  5. psql: Fix incorrect status code returned by \getresults

  6. psql: Allow queries terminated by semicolons while in pipeline mode

  7. psql: Add \sendpipeline to send query buffers while in a pipeline

  8. psql: Fix memory leak with \gx used within a pipeline

  9. psql: Add pipeline status to prompt and some state variables

  10. Add more tests for utility commands in pipelines

  11. psql: Add support for pipelines

  12. Add braces for if block with large comment in psql's common.c