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fsync pg_logical/mappings in CheckPointLogicalRewriteHeap().
While individual logical rewrite files were synced to disk, the directory was not. On some filesystems that could lead to loosing directory entries after a crash. Reported-By: Tom Lane <tgl@sss.pgh.pa.us> Author: Nathan Bossart <bossartn@amazon.com> Discussion: https://postgr.es/m/867F2E29-2782-4869-970E-B984C6D35A8F@amazon.com Backpatch: 10-
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@ -1312,4 +1312,7 @@ CheckPointLogicalRewriteHeap(void)
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}
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}
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}
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}
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FreeDir(mappings_dir);
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FreeDir(mappings_dir);
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/* persist directory entries to disk */
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fsync_fname("pg_logical/mappings", true);
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}
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}
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