This worked for us in 7.something (don't need it anymore, but it should
still work).
You'll want to create one for INT8, INT2, etc.. if you are going to use
those as well...
CREATE AGGREGATE aggr_bitand ( BASETYPE = INT4, SFUNC1 = int4and, STYPE1 =
INT4);
On Thu, 1 Nov 2001, James Orr wrote:
> Hi,
>
> Is there an aggregate binary AND function in postgres? If not, is there a
> way to write your own aggregate functions? Examples?
>
> - James
>
>
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