108 lines
2.5 KiB
MySQL
108 lines
2.5 KiB
MySQL
SET search_path = public;
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BEGIN;
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create function set_limit(float4)
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returns float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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create function show_limit()
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returns float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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create function show_trgm(text)
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returns _text
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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create function similarity(text,text)
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returns float4
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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create function similarity_op(text,text)
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returns bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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CREATE OPERATOR % (
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LEFTARG = text,
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RIGHTARG = text,
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PROCEDURE = similarity_op,
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COMMUTATOR = '%',
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RESTRICT = contsel,
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JOIN = contjoinsel
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);
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--gist key
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CREATE FUNCTION gtrgm_in(cstring)
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RETURNS gtrgm
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT;
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CREATE FUNCTION gtrgm_out(gtrgm)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT;
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CREATE TYPE gtrgm (
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INTERNALLENGTH = -1,
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INPUT = gtrgm_in,
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OUTPUT = gtrgm_out
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);
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-- support functions
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CREATE FUNCTION gtrgm_consistent(gtrgm,internal,int4)
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION gtrgm_compress(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION gtrgm_decompress(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION gtrgm_penalty(internal,internal,internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT;
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CREATE FUNCTION gtrgm_picksplit(internal, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION gtrgm_union(bytea, internal)
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RETURNS _int4
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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CREATE FUNCTION gtrgm_same(gtrgm, gtrgm, internal)
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RETURNS internal
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AS 'MODULE_PATHNAME'
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LANGUAGE C;
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-- create the operator class
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CREATE OPERATOR CLASS gist_trgm_ops
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FOR TYPE text USING gist
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AS
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OPERATOR 1 % (text, text),
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FUNCTION 1 gtrgm_consistent (gtrgm, internal, int4),
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FUNCTION 2 gtrgm_union (bytea, internal),
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FUNCTION 3 gtrgm_compress (internal),
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FUNCTION 4 gtrgm_decompress (internal),
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FUNCTION 5 gtrgm_penalty (internal, internal, internal),
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FUNCTION 6 gtrgm_picksplit (internal, internal),
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FUNCTION 7 gtrgm_same (gtrgm, gtrgm, internal),
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STORAGE gtrgm;
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COMMIT;
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