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Minor performance improvement: avoid unnecessary creation/unioning of

author Tom Lane <tgl@sss.pgh.pa.us>

2005年4月20日 15:48:36 +0000 (15:48 +0000)

committer Tom Lane <tgl@sss.pgh.pa.us>

2005年4月20日 15:48:36 +0000 (15:48 +0000)

commit 9d64632144034cd6b0a32bad1c3a305008149754

tree 3ffabef3865521ea9a6e48e7e2213c369ff01abc tree

parent de4fbfadc50efe16cc05ea929bf5b408143d23fa commit | diff

Minor performance improvement: avoid unnecessary creation/unioning of
bitmaps for multiple indexscans. Instead just let each indexscan add
TIDs directly into the BitmapOr node's result bitmap.

src/backend/executor/nodeBitmapAnd.c diff | blob | blame | history

src/backend/executor/nodeBitmapIndexscan.c diff | blob | blame | history

src/backend/executor/nodeBitmapOr.c diff | blob | blame | history

src/include/nodes/execnodes.h diff | blob | blame | history

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