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| author | Alvaro Herrera | 2020-10-27 17:31:37 +0000 |
|---|---|---|
| committer | Alvaro Herrera | 2020-10-27 17:31:37 +0000 |
| commit | 403a3d91c841beabf3efd7bffddb47a2bce4481f (patch) | |
| tree | ec9fed8ddebae8efeabe9ba4e59a95989a95a0ca /doc/src | |
| parent | f893e68d761adbee7f888109b1adf76151e3e17a (diff) | |
pg_dump: Lock all relations, not just plain tables
Now that LOCK TABLE can take any relation type, acquire lock on all
relations that are to be dumped. This prevents schema changes or
deadlock errors that could cause a dump to fail after expending much
effort. The server is tested to have the capability and the feature
disabled if it doesn't, so that a patched pg_dump doesn't fail when
connecting to an unpatched server.
Backpatch to 9.5.
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Reported-by: Wells Oliver <wells.oliver@gmail.com>
Discussion: https://postgr.es/m/20201021200659.GA32358@alvherre.pgsql
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