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Add aggsortop column to pg_aggregate, so that MIN/MAX optimization can

author Tom Lane <tgl@sss.pgh.pa.us>

2005年4月12日 04:26:34 +0000 (04:26 +0000)

committer Tom Lane <tgl@sss.pgh.pa.us>

2005年4月12日 04:26:34 +0000 (04:26 +0000)

commit 2e7a68896bfa84b28cd57e23e141aa9c899275c7

tree 11d360de8f7aab0d5c3345a45e61169c40f83538 tree

parent 3803f243790466722cb6cd26118f48629261cb58 commit | diff

Add aggsortop column to pg_aggregate, so that MIN/MAX optimization can
be supported for all datatypes. Add CREATE AGGREGATE and pg_dump support
too. Add specialized min/max aggregates for bpchar, instead of depending
on text's min/max, because otherwise the possible use of bpchar indexes
cannot be recognized.
initdb forced because of catalog changes.

15 files changed:

doc/src/sgml/catalogs.sgml diff | blob | blame | history

doc/src/sgml/ref/create_aggregate.sgml diff | blob | blame | history

src/backend/catalog/pg_aggregate.c diff | blob | blame | history

src/backend/commands/aggregatecmds.c diff | blob | blame | history

src/backend/optimizer/plan/planagg.c diff | blob | blame | history

src/backend/utils/adt/varchar.c diff | blob | blame | history

src/bin/pg_dump/pg_dump.c diff | blob | blame | history

src/include/catalog/catversion.h diff | blob | blame | history

src/include/catalog/pg_aggregate.h diff | blob | blame | history

src/include/catalog/pg_proc.h diff | blob | blame | history

src/include/utils/builtins.h diff | blob | blame | history

src/test/regress/expected/oidjoins.out diff | blob | blame | history

src/test/regress/expected/opr_sanity.out diff | blob | blame | history

src/test/regress/sql/oidjoins.sql diff | blob | blame | history

src/test/regress/sql/opr_sanity.sql diff | blob | blame | history

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