在 Mac 上升级 PostgreSQL 时无法打开版本文件“postgresql@10/PG_VERSION”失败

Question

I am attempting to upgrade PostgreSQL on Mac from 10 to 12. I have installed 12, however I have hit a blocker when trying to upgrade.

I'd really like to keep the data rather than blow it all away, which is why I am using pg_upgrade .

When I run:

pg_upgrade -d postgresql\@10 -D postgresql\@12 -b /usr/local/Cellar/postgresql@10/10.19_1/bin/ -B /usr/local/Cellar/postgresql@12/12.9_1/bin -v
Running in verbose mode

I get the following error:

could not open version file "postgresql@10/PG_VERSION" Failure, exiting

PostgreSQL 12 is installed:

brew list --versions | grep postgres
postgresql@10 10.19_1
postgresql@12 12.9_1

Am I missing a step?

Answer 1

Use absolute paths for the PostgreSQL data directories. If that doesn't help, it would be a PostgreSQL bug that you should report.