CREATE OPERATOR CLASS bigint_ops
DEFAULT FOR TYPE bigint USING bloom AS
OPERATOR 1 =(bigint, bigint),
FU>CTION 1 hashint8(bigint);
Now, you can build bloom index for bigint data type.
PS.
Data types, which could be supported by bloom index.
SELECT oc.opcintype::regtype, p.amproc FROM pg_opclass oc
JOIN pg_amproc p ON p.amprocfamily = oc.opcfamily
WHERE oc.opcmethod = 405 AND oc.opcdefault AND p.amprocnum = 1
AND p.amproclefttype = oc.opcintype AND p.amprocrighttype = oc.opcintype;