[pull] master from postgres:master #144
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Previously, truncating a temporary relation required scanning the entire local buffer pool once per relation fork to invalidate buffers. This could be slow, especially with a large local buffers, as the scan was repeated multiple times. A similar issue with regular tables (shared buffers) was addressed in commit 6d05086 by scanning the buffer pool only once for all forks. This commit applies the same optimization to temporary relations, improving truncation performance. Author: Daniil Davydov <[email protected]> Reviewed-by: Michael Paquier <[email protected]> Reviewed-by: Fujii Masao <[email protected]> Reviewed-by: Dilip Kumar <[email protected]> Reviewed-by: Maxim Orlov <[email protected]> Discussion: https://postgr.es/m/CAJDiXggNqsJOH7C5co4jA8nDk8vw-=sokyh5s1_TENWnC6Ofcg@mail.gmail.com
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