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| author | Peter Eisentraut <peter_e@gmx.net> | 2018-11-07 18:05:54 +0100 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2018-11-07 18:35:20 +0100 |
| commit | 3a769d8239afdc003c91a56d2d8d5adfadacda5d (patch) | |
| tree | dd9b3cf3f6e93aaacdee009c5bcc0f3193887743 /src/backend/executor/nodeModifyTable.c | |
| parent | 5f32b29c18195299e90c1fb6c8945e9a46d772d2 (diff) | |
| download | postgresql-3a769d8239afdc003c91a56d2d8d5adfadacda5d.tar.gz postgresql-3a769d8239afdc003c91a56d2d8d5adfadacda5d.zip | |
pg_upgrade: Allow use of file cloning
Add another transfer mode --clone to pg_upgrade (besides the existing
--link and the default copy), using special file cloning calls. This
makes the file transfer faster and more space efficient, achieving
speed similar to --link mode without the associated drawbacks.
On Linux, file cloning is supported on Btrfs and XFS (if formatted with
reflink support). On macOS, file cloning is supported on APFS.
Reviewed-by: Michael Paquier <michael@paquier.xyz>
Diffstat (limited to 'src/backend/executor/nodeModifyTable.c')
0 files changed, 0 insertions, 0 deletions