what’s the unit of max_wal_size in postgres view pg_setting

The behavior changed in commit 9a3215026b and appears in PostgreSQL v10, but did not make it into the release notes. I would say that is no breaking change, but of course that is debatable.

Before the change, the unit was the size of a WAL segment, by default 16MB.

I don’t see a reason why this should change again, but I don’t know the future either.

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