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with OPAQUE, as per recent pghackers discussion. I still want to do some more work on the 'cstring' pseudo-type, but I'm going to commit the bulk of the changes now before the tree starts shifting under me ...
184 lines
4.7 KiB
MySQL
184 lines
4.7 KiB
MySQL
BEGIN TRANSACTION;
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-- Adjust this setting to control where the objects get created.
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SET search_path = public;
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-- TXTIDX type
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CREATE FUNCTION txtidx_in(cstring)
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RETURNS txtidx
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION txtidx_out(txtidx)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE txtidx (
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internallength = -1,
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input = txtidx_in,
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output = txtidx_out,
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storage = extended
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);
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CREATE FUNCTION txt2txtidx(text)
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RETURNS txtidx
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION txtidxsize(txtidx)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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--QUERYTYPES
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--without morphology
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CREATE FUNCTION qtxt_in(cstring)
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RETURNS query_txt
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION qtxt_out(query_txt)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE query_txt (
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internallength = -1,
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input = qtxt_in,
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output = qtxt_out
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);
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--with morphology
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CREATE FUNCTION mqtxt_in(cstring)
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RETURNS mquery_txt
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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--same C output function as for query_txt
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CREATE FUNCTION mqtxt_out(mquery_txt)
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RETURNS cstring
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AS 'MODULE_PATHNAME', 'qtxt_out'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE mquery_txt (
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internallength = -1,
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input = mqtxt_in,
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output = mqtxt_out
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);
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--only for debug
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CREATE FUNCTION querytree(query_txt)
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RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION querytree(mquery_txt)
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RETURNS text
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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--operations
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CREATE FUNCTION execqtxt(txtidx, query_txt) RETURNS bool
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AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
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COMMENT ON FUNCTION execqtxt(txtidx, query_txt) IS 'boolean operation with text index';
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CREATE FUNCTION execqtxt(txtidx, mquery_txt) RETURNS bool
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AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
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COMMENT ON FUNCTION execqtxt(txtidx, mquery_txt) IS 'boolean operation with text index';
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CREATE FUNCTION rexecqtxt(query_txt, txtidx) RETURNS bool
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AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
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COMMENT ON FUNCTION rexecqtxt(query_txt, txtidx) IS 'boolean operation with text index';
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CREATE FUNCTION rexecqtxt(mquery_txt, txtidx) RETURNS bool
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AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
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COMMENT ON FUNCTION rexecqtxt(mquery_txt, txtidx) IS 'boolean operation with text index';
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CREATE OPERATOR @@ (
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LEFTARG = txtidx, RIGHTARG = query_txt, PROCEDURE = execqtxt,
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COMMUTATOR = '~@', RESTRICT = contsel, JOIN = contjoinsel
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);
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CREATE OPERATOR ~@ (
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LEFTARG = query_txt, RIGHTARG = txtidx, PROCEDURE = rexecqtxt,
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COMMUTATOR = '@@', RESTRICT = contsel, JOIN = contjoinsel
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);
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CREATE OPERATOR ## (
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LEFTARG = txtidx, RIGHTARG = mquery_txt, PROCEDURE = execqtxt,
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COMMUTATOR = '~#', RESTRICT = contsel, JOIN = contjoinsel
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);
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CREATE OPERATOR ~# (
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LEFTARG = mquery_txt, RIGHTARG = txtidx, PROCEDURE = rexecqtxt,
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COMMUTATOR = '##', RESTRICT = contsel, JOIN = contjoinsel
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);
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--Trigger
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create function tsearch() returns trigger as
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'MODULE_PATHNAME'
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language 'C';
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--GiST
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--GiST key type
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CREATE FUNCTION gtxtidx_in(cstring)
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RETURNS gtxtidx
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION gtxtidx_out(gtxtidx)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE 'c' with (isstrict);
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CREATE TYPE gtxtidx (
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internallength = -1,
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input = gtxtidx_in,
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output = gtxtidx_out
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);
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-- support functions
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CREATE FUNCTION gtxtidx_consistent(gtxtidx,internal,int4) RETURNS bool
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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CREATE FUNCTION gtxtidx_compress(internal) RETURNS internal
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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CREATE FUNCTION gtxtidx_decompress(internal) RETURNS internal
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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CREATE FUNCTION gtxtidx_penalty(internal,internal,internal) RETURNS internal
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AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
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CREATE FUNCTION gtxtidx_picksplit(internal, internal) RETURNS internal
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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CREATE FUNCTION gtxtidx_union(bytea, internal) RETURNS _int4
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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CREATE FUNCTION gtxtidx_same(gtxtidx, gtxtidx, internal) RETURNS internal
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AS 'MODULE_PATHNAME' LANGUAGE 'c';
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-- create the operator class
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CREATE OPERATOR CLASS gist_txtidx_ops
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DEFAULT FOR TYPE txtidx USING gist AS
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OPERATOR 1 @@ (txtidx, query_txt) RECHECK ,
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OPERATOR 2 ## (txtidx, mquery_txt) RECHECK ,
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FUNCTION 1 gtxtidx_consistent (gtxtidx, internal, int4),
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FUNCTION 2 gtxtidx_union (bytea, internal),
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FUNCTION 3 gtxtidx_compress (internal),
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FUNCTION 4 gtxtidx_decompress (internal),
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FUNCTION 5 gtxtidx_penalty (internal, internal, internal),
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FUNCTION 6 gtxtidx_picksplit (internal, internal),
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FUNCTION 7 gtxtidx_same (gtxtidx, gtxtidx, internal),
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STORAGE gtxtidx;
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END TRANSACTION;
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