pgsql/src backend/catalog/heap.c backend/comma ...

CVSROOT:    /cvsroot
Module name:    pgsql
Changes by:    tgl@postgresql.org    02/05/12 19:43:04

Modified files:
    src/backend/catalog: heap.c
    src/backend/commands: tablecmds.c
    src/backend/executor: Makefile execQual.c
    src/backend/nodes: copyfuncs.c equalfuncs.c makefuncs.c
                       outfuncs.c readfuncs.c
    src/backend/optimizer: README
    src/backend/optimizer/path: allpaths.c indxpath.c pathkeys.c
    src/backend/optimizer/plan: initsplan.c planner.c
    src/backend/optimizer/prep: prepqual.c
    src/backend/optimizer/util: clauses.c
    src/backend/parser: parse_clause.c parse_coerce.c parse_expr.c
                        parse_func.c parse_node.c
    src/backend/utils/adt: ruleutils.c
    src/backend/utils/cache: lsyscache.c
    src/include/catalog: catversion.h
    src/include/nodes: makefuncs.h nodes.h primnodes.h
    src/include/optimizer: clauses.h
    src/include/parser: parse_coerce.h
    src/include/utils: lsyscache.h
Removed files:
    src/backend/executor: execFlatten.c
    src/include/executor: execFlatten.h

Log message:
    Get rid of long-since-vestigial Iter node type, in favor of adding a
    returns-set boolean field in Func and Oper nodes.  This allows cleaner,
    more reliable tests for expressions returning sets in the planner and
    parser.  For example, a WHERE clause returning a set is now detected
    and complained of in the parser, not only at runtime.