mirror of
https://github.com/ivuorinen/cheatsheet-tldr.git
synced 2026-01-26 11:33:59 +00:00
34 lines
1.5 KiB
Plaintext
34 lines
1.5 KiB
Plaintext
---
|
|
syntax: markdown
|
|
tags: [tldr, common]
|
|
source: https://github.com/tldr-pages/tldr.git
|
|
---
|
|
# pg_upgrade
|
|
|
|
> Upgrade a PostgreSQL database cluster to a new major version.
|
|
> More information: <https://www.postgresql.org/docs/current/pgupgrade.html>.
|
|
|
|
- Check clusters before upgrading:
|
|
|
|
`pg_upgrade {{[-c|--check]}} {{[-b|--old-bindir]}} {{path/to/old_bin}} {{[-B|--new-bindir]}} {{path/to/new_bin}} {{[-d|--old-datadir]}} {{path/to/old_data}} {{[-D|--new-datadir]}} {{path/to/new_data}}`
|
|
|
|
- Perform the actual upgrade:
|
|
|
|
`pg_upgrade {{[-b|--old-bindir]}} {{path/to/old_bin}} {{[-B|--new-bindir]}} {{path/to/new_bin}} {{[-d|--old-datadir]}} {{path/to/old_data}} {{[-D|--new-datadir]}} {{path/to/new_data}}`
|
|
|
|
- Use multiple parallel jobs during the upgrade:
|
|
|
|
`pg_upgrade {{[-j|--jobs]}} {{njobs}} {{[-b|--old-bindir]}} {{path/to/old_bin}} {{[-B|--new-bindir]}} {{path/to/new_bin}} {{[-d|--old-datadir]}} {{path/to/old_data}} {{[-D|--new-datadir]}} {{path/to/new_data}}`
|
|
|
|
- Specify the old and new PostgreSQL ports:
|
|
|
|
`pg_upgrade {{[-p|--old-port]}} {{port}} {{[-P|--new-port]}} {{port}} {{[-b|--old-bindir]}} {{path/to/old_bin}} {{[-B|--new-bindir]}} {{path/to/new_bin}} {{[-d|--old-datadir]}} {{path/to/old_data}} {{[-D|--new-datadir]}} {{path/to/new_data}}`
|
|
|
|
- Use hard links instead of copying files to the new cluster:
|
|
|
|
`pg_upgrade {{[-k|--link]}} {{[-b|--old-bindir]}} {{path/to/old_bin}} {{[-B|--new-bindir]}} {{path/to/new_bin}} {{[-d|--old-datadir]}} {{path/to/old_data}} {{[-D|--new-datadir]}} {{path/to/new_data}}`
|
|
|
|
- Display help:
|
|
|
|
`pg_upgrade {{[-?|--help]}}`
|