From: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
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To: | PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org> |
Subject: | new aggregate functions v3 |
Date: | 2004-05-06 07:26:38 |
Message-ID: | Pine.LNX.4.58.0405060923410.9381@sablons.cri.ensmp.fr |
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Lists: | pgsql-patches |
Dear patchers,
please find attached my third patch submission for adding new aggregate
functions. This new version adds a note and some indexes in the
documentation about sql standard names for bool_and and bool_or, as
suggested by Robert Treat. It also fixes conflicts created by the removal
of shameful aclitem accessors.
The added aggregates are:
(1) boolean-and and boolean-or aggregates named bool_and and bool_or.
they (SHOULD;-) correspond to standard sql every and some/any aggregates.
they do not have the right name as there is a problem with
the standard and the parser for some/any. Tom also think that
the standard name is misleading because NULL are ignored.
(2) bitwise integer aggregates named bit_and and bit_or for
int2, int4, int8 and bit types. They are not standard, but I find
them useful. I needed them once.
The patches adds:
- 2 new very short strict functions for boolean aggregates in
src/backed/utils/adt/bool.c,
src/include/utils/builtins.h and src/include/catalog/pg_proc.h
- the new aggregates declared in src/include/catalog/pg_proc.h and
src/include/catalog/pg_aggregate.h
- some documentation and validation about these new aggregates.
It also updates the catalog version. It validates for me.
Have a nice day,
--
Fabien Coelho - coelho(at)cri(dot)ensmp(dot)fr
Attachment | Content-Type | Size |
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new_aggregates.patch | text/plain | 15.0 KB |
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