pgsql-server/src backend/nodes/copyfuncs.c bac ...

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)svr1(dot)postgresql(dot)org 04/01/05 01:07:36

Modified files:
src/backend/nodes: copyfuncs.c equalfuncs.c outfuncs.c
src/backend/optimizer/path: allpaths.c costsize.c indxpath.c
joinpath.c orindxpath.c
src/backend/optimizer/plan: createplan.c initsplan.c
src/backend/optimizer/util: pathnode.c restrictinfo.c
src/include/nodes: relation.h
src/include/optimizer: cost.h paths.h restrictinfo.h

Log message:
Add the ability to extract OR indexscan conditions from OR-of-AND
join conditions in which each OR subclause includes a constraint on
the same relation. This implements the other useful side-effect of
conversion to CNF format, without its unpleasant side-effects. As
per pghackers discussion of a few weeks ago.