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| author | Thomas Munro <tmunro@postgresql.org> | 2020-07-31 14:15:18 +1200 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2020-07-31 14:29:52 +1200 |
| commit | c5315f4f44843c20ada876fdb0d0828795dfbdf5 (patch) | |
| tree | b94c24609a31ae7243b217ae7d5358c8cff8fe20 /src/backend/access/gist | |
| parent | e3931d01f3afef14703827eda1dad0a3fb3b5d07 (diff) | |
| download | postgresql-c5315f4f44843c20ada876fdb0d0828795dfbdf5.tar.gz postgresql-c5315f4f44843c20ada876fdb0d0828795dfbdf5.zip | |
Cache smgrnblocks() results in recovery.
Avoid repeatedly calling lseek(SEEK_END) during recovery by caching
the size of each fork. For now, we can't use the same technique in
other processes, because we lack a shared invalidation mechanism.
Do this by generalizing the pre-existing caching used by FSM and VM
to support all forks.
Discussion: https://postgr.es/m/CAEepm%3D3SSw-Ty1DFcK%3D1rU-K6GSzYzfdD4d%2BZwapdN7dTa6%3DnQ%40mail.gmail.com
Diffstat (limited to 'src/backend/access/gist')
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