pgsql/ oc/src/sgml/catalogs.sgml oc/src/sgml/r ...

CVSROOT:    /cvsroot
Module name:    pgsql
Changes by:    tgl@postgresql.org    02/04/11 16:00:18

Modified files:
    doc/src/sgml   : catalogs.sgml
    doc/src/sgml/ref: create_aggregate.sgml create_function.sgml
    src/backend/catalog: aclchk.c heap.c indexing.c pg_aggregate.c
                         pg_proc.c
    src/backend/commands: comment.c define.c indexcmds.c remove.c
    src/backend/executor: nodeAgg.c
    src/backend/nodes: copyfuncs.c equalfuncs.c outfuncs.c
                       readfuncs.c
    src/backend/optimizer/util: var.c
    src/backend/parser: parse_agg.c parse_coerce.c parse_expr.c
                        parse_func.c parse_node.c parse_oper.c
                        parse_target.c
    src/backend/rewrite: rewriteHandler.c
    src/backend/utils: Gen_fmgrtab.sh
    src/backend/utils/adt: ruleutils.c sets.c varchar.c
    src/backend/utils/cache: syscache.c
    src/bin/pg_dump: pg_dump.c pg_dump.h
    src/bin/psql   : describe.c tab-complete.c
    src/include/catalog: catversion.h indexing.h pg_aggregate.h
                         pg_attribute.h pg_class.h pg_operator.h
                         pg_proc.h
    src/include/executor: nodeAgg.h
    src/include/nodes: primnodes.h
    src/include/parser: parse_agg.h parse_coerce.h parse_func.h
                        parse_target.h
    src/include/utils: acl.h builtins.h syscache.h
    src/interfaces/python/tutorial: syscat.py
    src/test/regress/expected: alter_table.out foreign_key.out
                               oidjoins.out opr_sanity.out rules.out
    src/test/regress/sql: alter_table.sql foreign_key.sql
                          oidjoins.sql opr_sanity.sql rules.sql
    src/tutorial   : syscat.source

Log message:
    Restructure representation of aggregate functions so that they have pg_proc
    entries, per pghackers discussion.  This fixes aggregates to live in
    namespaces, and also simplifies/speeds up lookup in parse_func.c.
    Also, add a 'proimplicit' flag to pg_proc that controls whether a type
    coercion function may be invoked implicitly, or only explicitly.  The
    current settings of these flags are more permissive than I would like,
    but we will need to debate and refine the behavior; for now, I avoided
    breaking regression tests as much as I could.