new aggregate functions v2
От | Fabien COELHO |
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Тема | new aggregate functions v2 |
Дата | |
Msg-id | Pine.GSO.4.58.0405021719370.2462@chailly99 обсуждение исходный текст |
Ответы |
Re: new aggregate functions v2
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Список | pgsql-patches |
Dear patchers, please find attached my second patch submission for adding new aggregate functions: (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, and I'm not the first one to look for them. 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@cri.ensmp.fr
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