postgresql/contrib/seg/seg.sql.in

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-- Create the user-defined type for 1-D floating point intervals (seg)
--
BEGIN TRANSACTION;
-- Adjust this setting to control where the objects get created.
SET search_path = public;
CREATE FUNCTION seg_in(cstring)
RETURNS seg
AS 'MODULE_PATHNAME'
LANGUAGE 'c';
CREATE FUNCTION seg_out(seg)
RETURNS cstring
AS 'MODULE_PATHNAME'
LANGUAGE 'c';
CREATE TYPE seg (
internallength = 12,
input = seg_in,
output = seg_out
);
COMMENT ON TYPE seg IS
'floating point interval ''FLOAT .. FLOAT'', ''.. FLOAT'', ''FLOAT ..'' or ''FLOAT''';
--
-- External C-functions for R-tree methods
--
-- Left/Right methods
CREATE FUNCTION seg_over_left(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_over_left(seg, seg) IS
'is over and left of';
CREATE FUNCTION seg_over_right(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_over_right(seg, seg) IS
'is over and right of';
CREATE FUNCTION seg_left(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_left(seg, seg) IS
'is left of';
CREATE FUNCTION seg_right(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_right(seg, seg) IS
'is right of';
-- Comparison methods
CREATE FUNCTION seg_lt(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_lt(seg, seg) IS
'less than';
CREATE FUNCTION seg_le(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_le(seg, seg) IS
'less than or equal';
CREATE FUNCTION seg_gt(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_gt(seg, seg) IS
'greater than';
CREATE FUNCTION seg_ge(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_ge(seg, seg) IS
'greater than or equal';
CREATE FUNCTION seg_contains(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_contains(seg, seg) IS
'contains';
CREATE FUNCTION seg_contained(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_contained(seg, seg) IS
'contained in';
CREATE FUNCTION seg_overlap(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_overlap(seg, seg) IS
'overlaps';
CREATE FUNCTION seg_same(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_same(seg, seg) IS
'same as';
CREATE FUNCTION seg_different(seg, seg) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
COMMENT ON FUNCTION seg_different(seg, seg) IS
'different';
-- support routines for indexing
CREATE FUNCTION seg_union(seg, seg) RETURNS seg
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
CREATE FUNCTION seg_inter(seg, seg) RETURNS seg
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
CREATE FUNCTION seg_size(seg) RETURNS float4
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
-- miscellaneous
CREATE FUNCTION seg_upper(seg) RETURNS float4
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
CREATE FUNCTION seg_lower(seg) RETURNS float4
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
--
-- OPERATORS
--
CREATE OPERATOR < (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_lt,
COMMUTATOR = '>', NEGATOR = '>=',
RESTRICT = scalarltsel, JOIN = scalarltjoinsel
);
CREATE OPERATOR <= (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_le,
COMMUTATOR = '>=', NEGATOR = '>',
RESTRICT = scalarltsel, JOIN = scalarltjoinsel
);
CREATE OPERATOR > (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_gt,
COMMUTATOR = '<', NEGATOR = '<=',
RESTRICT = scalargtsel, JOIN = scalargtjoinsel
);
CREATE OPERATOR >= (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_ge,
COMMUTATOR = '<=', NEGATOR = '<',
RESTRICT = scalargtsel, JOIN = scalargtjoinsel
);
CREATE OPERATOR << (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_left,
COMMUTATOR = '>>',
RESTRICT = positionsel, JOIN = positionjoinsel
);
CREATE OPERATOR &< (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_over_left,
COMMUTATOR = '&>',
RESTRICT = positionsel, JOIN = positionjoinsel
);
CREATE OPERATOR && (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_overlap,
COMMUTATOR = '&&',
RESTRICT = positionsel, JOIN = positionjoinsel
);
CREATE OPERATOR &> (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_over_right,
COMMUTATOR = '&<',
RESTRICT = positionsel, JOIN = positionjoinsel
);
CREATE OPERATOR >> (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_right,
COMMUTATOR = '<<',
RESTRICT = positionsel, JOIN = positionjoinsel
);
CREATE OPERATOR = (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_same,
COMMUTATOR = '=', NEGATOR = '<>',
RESTRICT = eqsel, JOIN = eqjoinsel,
SORT1 = '<', SORT2 = '<'
);
CREATE OPERATOR <> (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_different,
COMMUTATOR = '<>', NEGATOR = '=',
RESTRICT = neqsel, JOIN = neqjoinsel
);
CREATE OPERATOR @ (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_contains,
COMMUTATOR = '~',
RESTRICT = contsel, JOIN = contjoinsel
);
CREATE OPERATOR ~ (
LEFTARG = seg, RIGHTARG = seg, PROCEDURE = seg_contained,
COMMUTATOR = '@',
RESTRICT = contsel, JOIN = contjoinsel
);
-- define the GiST support methods
CREATE FUNCTION gseg_consistent(internal,seg,int4) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION gseg_compress(internal) RETURNS internal
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION gseg_decompress(internal) RETURNS internal
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION gseg_penalty(internal,internal,internal) RETURNS internal
AS 'MODULE_PATHNAME' LANGUAGE 'c' with (isstrict);
CREATE FUNCTION gseg_picksplit(internal, internal) RETURNS internal
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION gseg_union(bytea, internal) RETURNS seg
AS 'MODULE_PATHNAME' LANGUAGE 'c';
CREATE FUNCTION gseg_same(seg, seg, internal) RETURNS internal
AS 'MODULE_PATHNAME' LANGUAGE 'c';
-- Create the operator class for indexing
CREATE OPERATOR CLASS gist_seg_ops
DEFAULT FOR TYPE seg USING gist AS
OPERATOR 1 << ,
OPERATOR 2 &< ,
OPERATOR 3 && ,
OPERATOR 4 &> ,
OPERATOR 5 >> ,
OPERATOR 6 = ,
OPERATOR 7 @ ,
OPERATOR 8 ~ ,
FUNCTION 1 gseg_consistent (internal, seg, int4),
FUNCTION 2 gseg_union (bytea, internal),
FUNCTION 3 gseg_compress (internal),
FUNCTION 4 gseg_decompress (internal),
FUNCTION 5 gseg_penalty (internal, internal, internal),
FUNCTION 6 gseg_picksplit (internal, internal),
FUNCTION 7 gseg_same (seg, seg, internal);
END TRANSACTION;