Dear patchers,
please find attached a small patch for adding new aggregate functions:
(1) boolean-and and boolean-or aggregates named bool_and and bool_or.
they 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.
(2) bitwise integer aggregates named bit_and and bit_or for
int2, int4, int8 and bit types. They are not standard,
however they exist in other db (eg mysql), and I needed them
for some other stuff.
The patch adds:
- 3 new functions for boolean aggregates in src/backed/utils/adt/bool.c,
src/include/utils/builtins.h and src/include/catalog/pg_proc.h
- 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
