pgsql-server/src backend/nodes/copyfuncs.c bac ... - Mailing list pgsql-committers

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@svr1.postgresql.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.