On Jul 3, 2008, at 00:19, Teodor Sigaev wrote:
Hash opclass is 5-times simpler that btree one :)
CREATE FUNCTION citext_hash(mchar)
RETURNS int4
AS 'MODULE_PATHNAME'
LANGUAGE C IMMUTABLE RETURNS NULL ON NULL INPUT;
CREATE OPERATOR CLASS citext_ops
DEFAULT FOR TYPE mchar USING hash AS
OPERATOR 1 = (citext, citext),
FUNCTION 1 citext_hash(citext);
Thanks. What would citext_hash() look like? I don't see a text_hash()
to borrow from anywhere in src/.
Thanks,
David
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