Fix thinko in BitmapAdjustPrefetchIterator.

robertmhaas · robertmhaas · commit a9a794913418 · 2017-04-04T09:07:18.000-04:00
Dilip Kumar Discussion: http://postgr.es/m/CAFiTN-uKAvRhWprb0i-U9zFOekgQRRwqjP1wvOBsKZb-UEKbug@mail.gmail.com
diff --git a/src/backend/executor/nodeBitmapHeapscan.c b/src/backend/executor/nodeBitmapHeapscan.c
@@ -494,7 +494,7 @@ BitmapAdjustPrefetchIterator(BitmapHeapScanState *node,
 		SpinLockAcquire(&pstate->mutex);
 		if (pstate->prefetch_pages > 0)
 		{
-			node->prefetch_pages--;
+			pstate->prefetch_pages--;
 			SpinLockRelease(&pstate->mutex);
 		}
 		else

Original file line number	Diff line number	Diff line change
`@@ -494,7 +494,7 @@ BitmapAdjustPrefetchIterator(BitmapHeapScanState *node,`
`494`	`494`	`SpinLockAcquire(&pstate->mutex);`
`495`	`495`	`if (pstate->prefetch_pages > 0)`
`496`	`496`	`{`
`497`		`- node->prefetch_pages--;`
	`497`	`+ pstate->prefetch_pages--;`
`498`	`498`	`SpinLockRelease(&pstate->mutex);`
`499`	`499`	`}`
`500`	`500`	`else`