pgsql-server/src backend/commands/explain.c ba ...

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)postgresql(dot)org 02/12/13 19:17:59

Modified files:
src/backend/commands: explain.c
src/backend/executor: execAmi.c execProcnode.c execQual.c
nodeSubplan.c
src/backend/nodes: copyfuncs.c equalfuncs.c outfuncs.c
readfuncs.c
src/backend/optimizer/path: costsize.c
src/backend/optimizer/plan: planner.c setrefs.c subselect.c
src/backend/optimizer/prep: prepunion.c
src/backend/optimizer/util: clauses.c var.c
src/backend/utils/adt: ruleutils.c
src/include/executor: executor.h nodeSubplan.h
src/include/nodes: execnodes.h nodes.h params.h primnodes.h
src/include/optimizer: clauses.h

Log message:
Clean up plantree representation of SubPlan-s --- SubLink does not appear
in the planned representation of a subplan at all any more, only SubPlan.
This means subselect.c doesn't scribble on its input anymore, which seems
like a good thing; and there are no longer three different possible
interpretations of a SubLink. Simplify node naming and improve comments
in primnodes.h. No change to stored rules, though.