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From: Michael Paquier <[email protected]>
To: [email protected]
Subject: pgsql: Add two IO wait events for COPY FROM/TO on a pipe/file/program
Date: Tue, 03 Feb 2026 03:27:44 +0000
Message-ID: <[email protected]> (raw)

Add two IO wait events for COPY FROM/TO on a pipe/file/program

Two wait events are added to the COPY FROM/TO code:
* COPY_FROM_READ: reading data from a copy_file.
* COPY_TO_WRITE: writing data to a copy_file.

In the COPY code, copy_file can be set when processing a command through
the pipe mode (for the non-DestRemote case), the program mode or the
file mode, when processing fread() or fwrite() on it.

Author: Nikolay Samokhvalov <[email protected]>
Reviewed-by: Dilip Kumar <[email protected]>
Reviewed-by: Sami Imseih <[email protected]>
Discussion: https://postgr.es/m/CAM527d_iDzz0Kqyi7HOfqa-Xzuq29jkR6AGXqfXLqA5PR5qsng@mail.gmail.com

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/e05a24c2d4eab3dd76741dc6e6c18bb0584771c5

Modified Files
--------------
src/backend/commands/copyfromparse.c            | 2 ++
src/backend/commands/copyto.c                   | 2 ++
src/backend/utils/activity/wait_event_names.txt | 2 ++
3 files changed, 6 insertions(+)



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