Count buffers dirtied due to hints in pgBufferUsage.shared_blks_dirtied.
Previously, such buffers weren't counted, with the possible result that EXPLAIN (BUFFERS) and pg_stat_statements would understate the true number of blocks dirtied by an SQL statement. Back-patch to 9.2, where this counter was introduced. Amit Kapila
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@ -2707,6 +2707,7 @@ MarkBufferDirtyHint(Buffer buffer, bool buffer_std)
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if (dirtied)
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{
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VacuumPageDirty++;
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pgBufferUsage.shared_blks_dirtied++;
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if (VacuumCostActive)
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VacuumCostBalance += VacuumCostPageDirty;
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}
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