Remove support for OR'd indexscans internal to a single IndexScan plan

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

Commit: 5b05185262fd562080ecfd675c7b3634a69851c0

Author: Tom Lane <tgl@sss.pgh.pa.us>

Date: 2005-04-25T01:30:14Z

Remove support for OR'd indexscans internal to a single IndexScan plan
node, as this behavior is now better done as a bitmap OR indexscan.
This allows considerable simplification in nodeIndexscan.c itself as
well as several planner modules concerned with indexscan plan generation.
Also we can improve the sharing of code between regular and bitmap
indexscans, since they are now working with nigh-identical Plan nodes.

Files

Path	Change	+/−
src/backend/commands/explain.c	modified	+14 −53
src/backend/executor/nodeBitmapIndexscan.c	modified	+25 −209
src/backend/executor/nodeIndexscan.c	modified	+275 −655
src/backend/nodes/copyfuncs.c	modified	+12 −13
src/backend/nodes/outfuncs.c	modified	+12 −13
src/backend/optimizer/path/allpaths.c	modified	+4 −5
src/backend/optimizer/path/indxpath.c	modified	+6 −150
src/backend/optimizer/path/orindxpath.c	modified	+31 −270
src/backend/optimizer/plan/createplan.c	modified	+199 −375
src/backend/optimizer/plan/setrefs.c	modified	+37 −37
src/backend/optimizer/plan/subselect.c	modified	+7 −7
src/backend/optimizer/util/pathnode.c	modified	+5 −8
src/backend/optimizer/util/restrictinfo.c	modified	+2 −47
src/backend/utils/adt/selfuncs.c	modified	+2 −2
src/include/executor/nodeIndexscan.h	modified	+11 −1
src/include/nodes/execnodes.h	modified	+13 −25
src/include/nodes/plannodes.h	modified	+34 −18
src/include/nodes/relation.h	modified	+17 −29
src/include/optimizer/paths.h	modified	+5 −5
src/include/optimizer/planmain.h	modified	+2 −1
src/include/optimizer/restrictinfo.h	modified	+1 −4