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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: "a.kozhemyakin" <a.kozhemyakin@postgrespro.ru>, Daniel Verite <daniel@manitou-mail.org>, Jelte Fennema-Nio <postgres@jeltef.nl>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2025-04-24T03:26:33Z
Lists: pgsql-hackers 
On Wed, Apr 23, 2025 at 04:13:14PM +0900, Michael Paquier wrote:
> The tweak for psql_fails_like() was kind of independent of the rest of
> the fix, so I have applied that as a commit of its own.  I am not
> convinced about the addition of a 4th test where we use the queries
> with semicolons without a \getresults between the sync and the end.

I've had some room to look again at all that this morning as this is
an open item, and I have applied the fix.  One tweak was in the tests,
where I have added only one wait_for_log() which should offer enough
coverage.

If you notice anything else, please let me know.
--
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