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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2005-04-21 19:18:13 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2005-04-21 19:18:13 +0000 |
| commit | 14c7fba3f7d0769d8a063dea2854693f35535f6a (patch) | |
| tree | 51b519e88e8092e6fc9cdd6bf50dbff872bc6fa6 /src/backend/nodes/outfuncs.c | |
| parent | c6221db3c0f7049b804391d59aeadcfbd1f51800 (diff) | |
| download | postgresql-14c7fba3f7d0769d8a063dea2854693f35535f6a.tar.gz postgresql-14c7fba3f7d0769d8a063dea2854693f35535f6a.zip | |
Rethink original decision to use AND/OR Expr nodes to represent bitmap
logic operations during planning. Seems cleaner to create two new Path
node types, instead --- this avoids duplication of cost-estimation code.
Also, create an enable_bitmapscan GUC parameter to control use of bitmap
plans.
Diffstat (limited to 'src/backend/nodes/outfuncs.c')
| -rw-r--r-- | src/backend/nodes/outfuncs.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/backend/nodes/outfuncs.c b/src/backend/nodes/outfuncs.c index 1ea59314ea2..c1c6ac09f48 100644 --- a/src/backend/nodes/outfuncs.c +++ b/src/backend/nodes/outfuncs.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.248 2005/04/21 02:28:01 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.249 2005/04/21 19:18:12 tgl Exp $ * * NOTES * Every node type that can appear in stored rules' parsetrees *must* @@ -1042,6 +1042,28 @@ _outBitmapHeapPath(StringInfo str, BitmapHeapPath *node) } static void +_outBitmapAndPath(StringInfo str, BitmapAndPath *node) +{ + WRITE_NODE_TYPE("BITMAPANDPATH"); + + _outPathInfo(str, (Path *) node); + + WRITE_NODE_FIELD(bitmapquals); + WRITE_FLOAT_FIELD(bitmapselectivity, "%.4f"); +} + +static void +_outBitmapOrPath(StringInfo str, BitmapOrPath *node) +{ + WRITE_NODE_TYPE("BITMAPORPATH"); + + _outPathInfo(str, (Path *) node); + + WRITE_NODE_FIELD(bitmapquals); + WRITE_FLOAT_FIELD(bitmapselectivity, "%.4f"); +} + +static void _outTidPath(StringInfo str, TidPath *node) { WRITE_NODE_TYPE("TIDPATH"); @@ -1853,6 +1875,12 @@ _outNode(StringInfo str, void *obj) case T_BitmapHeapPath: _outBitmapHeapPath(str, obj); break; + case T_BitmapAndPath: + _outBitmapAndPath(str, obj); + break; + case T_BitmapOrPath: + _outBitmapOrPath(str, obj); + break; case T_TidPath: _outTidPath(str, obj); break; |