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Fujii Masao b64c585fde Fix assertion failure in pg_prewarm() on objects without storage. ... An assertion test added in commit 049ef33 could fail when pg_prewarm() was called on objects without storage, such as partitioned tables. This resulted in the following failure in assert-enabled builds: Failed Assert("RelFileNumberIsValid(rlocator.relNumber)") Note that, in non-assert builds, pg_prewarm() just failed with an error in that case, so there was no ill effect in practice. This commit fixes the issue by having pg_prewarm() raise an error early if the specified object has no storage. This approach is similar to the fix in commit 4623d7144 for pg_freespacemap. Back-patched to v17, where the issue was introduced. Author: Masahiro Ikeda <ikedamsh@oss.nttdata.com> Reviewed-by: Dilip Kumar <dilipbalaut@gmail.com> Reviewed-by: Richard Guo <guofenglinux@gmail.com> Reviewed-by: Fujii Masao <masao.fujii@gmail.com> Discussion: https://postgr.es/m/e082e6027610fd0a4091ae6d033aa117@oss.nttdata.com Backpatch-through: 17		7 months ago
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pg_prewarm.out	Fix assertion failure in pg_prewarm() on objects without storage.	7 months ago