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(parent: de25638) | patch

author	Tom Lane <tgl@sss.pgh.pa.us>
	Sun, 16 Feb 2003 02:30:39 +0000 (02:30 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Sun, 16 Feb 2003 02:30:39 +0000 (02:30 +0000)
commit	51972a9d5d068dd34b24ff4923981ffb90e5cc2d
tree	c68fddbb3eaafbd332e84afbafe3c171f6372d4e	tree
parent	de25638d2fbe9e56ecfc60a7dda8a0c56028317a	commit \| diff

COALESCE() and NULLIF() are now first-class expressions, not macros
that turn into CASE expressions. They evaluate their arguments at most
once. Patch by Kris Jurka, review and (very light) editorializing by me.

22 files changed:

doc/src/sgml/func.sgml		diff \| blob \| blame \| history
src/backend/catalog/dependency.c		diff \| blob \| blame \| history
src/backend/executor/execQual.c		diff \| blob \| blame \| history
src/backend/nodes/copyfuncs.c		diff \| blob \| blame \| history
src/backend/nodes/equalfuncs.c		diff \| blob \| blame \| history
src/backend/nodes/outfuncs.c		diff \| blob \| blame \| history
src/backend/nodes/readfuncs.c		diff \| blob \| blame \| history
src/backend/optimizer/path/costsize.c		diff \| blob \| blame \| history
src/backend/optimizer/plan/setrefs.c		diff \| blob \| blame \| history
src/backend/optimizer/util/clauses.c		diff \| blob \| blame \| history
src/backend/parser/gram.y		diff \| blob \| blame \| history
src/backend/parser/parse_clause.c		diff \| blob \| blame \| history
src/backend/parser/parse_expr.c		diff \| blob \| blame \| history
src/backend/parser/parse_target.c		diff \| blob \| blame \| history
src/backend/utils/adt/ruleutils.c		diff \| blob \| blame \| history
src/include/catalog/catversion.h		diff \| blob \| blame \| history
src/include/nodes/execnodes.h		diff \| blob \| blame \| history
src/include/nodes/nodes.h		diff \| blob \| blame \| history
src/include/nodes/parsenodes.h		diff \| blob \| blame \| history
src/include/nodes/primnodes.h		diff \| blob \| blame \| history
src/pl/plpgsql/src/pl_exec.c		diff \| blob \| blame \| history
src/test/regress/expected/case.out		diff \| blob \| blame \| history

Heikki's random PostgreSQL patches