Horton

Add --copy-file-range option to pg_upgrade.

Thomas Munro <tmunro@postgresql.org>

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Commit: d93627bcbe5001750e7611f0e637200e2d81dcff
Author: Thomas Munro <tmunro@postgresql.org>
Date: 2024-03-05T23:01:01Z
Releases: 17.0 
Add --copy-file-range option to pg_upgrade.

The copy_file_range() system call is available on at least Linux and
FreeBSD, and asks the kernel to use efficient ways to copy ranges of a
file.  Options available to the kernel include sharing block ranges
(similar to --clone mode), and pushing down block copies to the storage
layer.

For automated testing, see PG_TEST_PG_UPGRADE_MODE.  (Perhaps in a later
commit we could consider setting this mode for one of the CI targets.)

Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/CA%2BhUKGKe7Hb0-UNih8VD5UNZy5-ojxFb3Pr3xSBBL8qj2M2%3DdQ%40mail.gmail.com

Files

PathChange+/−
configure modified +1 −1
configure.ac modified +1 −0
doc/src/sgml/ref/pgupgrade.sgml modified +13 −0
meson.build modified +1 −0
src/bin/pg_upgrade/check.c modified +3 −0
src/bin/pg_upgrade/file.c modified +78 −0
src/bin/pg_upgrade/option.c modified +6 −1
src/bin/pg_upgrade/pg_upgrade.h modified +4 −0
src/bin/pg_upgrade/relfilenumber.c modified +8 −0
src/bin/pg_upgrade/TESTING modified +2 −2
src/include/pg_config.h.in modified +3 −0

Documentation touched

Discussion