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Commitce42efa

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Use maintenance_io_concurrency for ANALYZE prefetch
When prefetching pages for ANALYZE, we should be usingmaintenance_io_concurrenty (by callingget_tablespace_maintenance_io_concurrency(), notget_tablespace_io_concurrency()).ANALYZE prefetching was introduced inc6fc50c, so back-patch to 14.Backpatch-through: 14Reported-By: Egor RogovDiscussion:https://postgr.es/m/9beada99-34ce-8c95-fadb-451768d08c64%40postgrespro.ru
1 parentf017272 commitce42efa

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‎src/backend/commands/analyze.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1164,7 +1164,7 @@ acquire_sample_rows(Relation onerel, int elevel,
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nblocks=BlockSampler_Init(&bs,totalblocks,targrows,randseed);
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#ifdefUSE_PREFETCH
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prefetch_maximum=get_tablespace_io_concurrency(onerel->rd_rel->reltablespace);
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prefetch_maximum=get_tablespace_maintenance_io_concurrency(onerel->rd_rel->reltablespace);
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/* Create another BlockSampler, using the same seed, for prefetching */
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if (prefetch_maximum)
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(void)BlockSampler_Init(&prefetch_bs,totalblocks,targrows,randseed);

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