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https://git.postgresql.org/git/postgresql.git
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cases. Operator classes now exist within "operator families". While most families are equivalent to a single class, related classes can be grouped into one family to represent the fact that they are semantically compatible. Cross-type operators are now naturally adjunct parts of a family, without having to wedge them into a particular opclass as we had done originally. This commit restructures the catalogs and cleans up enough of the fallout so that everything still works at least as well as before, but most of the work needed to actually improve the planner's behavior will come later. Also, there are not yet CREATE/DROP/ALTER OPERATOR FAMILY commands; the only way to create a new family right now is to allow CREATE OPERATOR CLASS to make one by default. I owe some more documentation work, too. But that can all be done in smaller pieces once this infrastructure is in place.
493 lines
11 KiB
MySQL
493 lines
11 KiB
MySQL
--
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-- Create the user-defined type for the 1-D integer arrays (_int4)
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--
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-- Adjust this setting to control where the operators, functions, and
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-- opclasses get created.
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SET search_path = public;
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BEGIN;
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-- Query type
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CREATE FUNCTION bqarr_in(cstring)
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RETURNS query_int
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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 bqarr_out(query_int)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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CREATE TYPE query_int (
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INTERNALLENGTH = -1,
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INPUT = bqarr_in,
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OUTPUT = bqarr_out
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);
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--only for debug
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CREATE FUNCTION querytree(query_int)
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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 boolop(_int4, query_int)
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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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COMMENT ON FUNCTION boolop(_int4, query_int) IS 'boolean operation with array';
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CREATE FUNCTION rboolop(query_int, _int4)
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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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COMMENT ON FUNCTION rboolop(query_int, _int4) IS 'boolean operation with array';
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CREATE OPERATOR @@ (
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LEFTARG = _int4,
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RIGHTARG = query_int,
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PROCEDURE = boolop,
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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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CREATE OPERATOR ~~ (
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LEFTARG = query_int,
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RIGHTARG = _int4,
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PROCEDURE = rboolop,
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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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--
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-- External C-functions for R-tree methods
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--
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-- Comparison methods
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CREATE FUNCTION _int_contains(_int4, _int4)
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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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COMMENT ON FUNCTION _int_contains(_int4, _int4) IS 'contains';
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CREATE FUNCTION _int_contained(_int4, _int4)
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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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COMMENT ON FUNCTION _int_contained(_int4, _int4) IS 'contained in';
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CREATE FUNCTION _int_overlap(_int4, _int4)
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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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COMMENT ON FUNCTION _int_overlap(_int4, _int4) IS 'overlaps';
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CREATE FUNCTION _int_same(_int4, _int4)
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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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COMMENT ON FUNCTION _int_same(_int4, _int4) IS 'same as';
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CREATE FUNCTION _int_different(_int4, _int4)
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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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COMMENT ON FUNCTION _int_different(_int4, _int4) IS 'different';
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-- support routines for indexing
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CREATE FUNCTION _int_union(_int4, _int4)
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RETURNS _int4
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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 _int_inter(_int4, _int4)
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RETURNS _int4
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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--
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-- OPERATORS
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--
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CREATE OPERATOR && (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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PROCEDURE = _int_overlap,
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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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--CREATE OPERATOR = (
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-- LEFTARG = _int4,
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-- RIGHTARG = _int4,
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-- PROCEDURE = _int_same,
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-- COMMUTATOR = '=',
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-- NEGATOR = '<>',
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-- RESTRICT = eqsel,
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-- JOIN = eqjoinsel,
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-- SORT1 = '<',
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-- SORT2 = '<'
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--);
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--CREATE OPERATOR <> (
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-- LEFTARG = _int4,
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-- RIGHTARG = _int4,
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-- PROCEDURE = _int_different,
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-- COMMUTATOR = '<>',
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-- NEGATOR = '=',
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-- RESTRICT = neqsel,
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-- JOIN = neqjoinsel
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--);
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CREATE OPERATOR @> (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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PROCEDURE = _int_contains,
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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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CREATE OPERATOR <@ (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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PROCEDURE = _int_contained,
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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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-- obsolete:
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CREATE OPERATOR @ (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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PROCEDURE = _int_contains,
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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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CREATE OPERATOR ~ (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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PROCEDURE = _int_contained,
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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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--------------
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CREATE FUNCTION intset(int4)
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RETURNS _int4
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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 icount(_int4)
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RETURNS int4
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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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RIGHTARG = _int4,
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PROCEDURE = icount
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);
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CREATE FUNCTION sort(_int4, text)
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RETURNS _int4
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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 sort(_int4)
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RETURNS _int4
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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 sort_asc(_int4)
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RETURNS _int4
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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 sort_desc(_int4)
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RETURNS _int4
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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 uniq(_int4)
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RETURNS _int4
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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 idx(_int4, int4)
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RETURNS int4
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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 = _int4,
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RIGHTARG = int4,
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PROCEDURE = idx
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);
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CREATE FUNCTION subarray(_int4, int4, int4)
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RETURNS _int4
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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 subarray(_int4, int4)
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RETURNS _int4
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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 intarray_push_elem(_int4, int4)
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RETURNS _int4
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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 = _int4,
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RIGHTARG = int4,
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PROCEDURE = intarray_push_elem
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);
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CREATE FUNCTION intarray_push_array(_int4, _int4)
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RETURNS _int4
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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 = _int4,
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RIGHTARG = _int4,
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COMMUTATOR = +,
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PROCEDURE = intarray_push_array
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);
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CREATE FUNCTION intarray_del_elem(_int4, int4)
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RETURNS _int4
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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 = _int4,
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RIGHTARG = int4,
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PROCEDURE = intarray_del_elem
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);
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CREATE FUNCTION intset_union_elem(_int4, int4)
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RETURNS _int4
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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 = _int4,
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RIGHTARG = int4,
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PROCEDURE = intset_union_elem
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);
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CREATE OPERATOR | (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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COMMUTATOR = |,
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PROCEDURE = _int_union
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);
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CREATE FUNCTION intset_subtract(_int4, _int4)
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RETURNS _int4
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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 = _int4,
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RIGHTARG = _int4,
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PROCEDURE = intset_subtract
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);
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CREATE OPERATOR & (
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LEFTARG = _int4,
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RIGHTARG = _int4,
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COMMUTATOR = &,
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PROCEDURE = _int_inter
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);
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--------------
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-- define the GiST support methods
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CREATE FUNCTION g_int_consistent(internal,_int4,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 g_int_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 g_int_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 g_int_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 g_int_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 g_int_union(internal, 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 g_int_same(_int4, _int4, 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 for indexing
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CREATE OPERATOR CLASS gist__int_ops
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DEFAULT FOR TYPE _int4 USING gist AS
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OPERATOR 3 &&,
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OPERATOR 6 = (anyarray, anyarray) RECHECK,
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OPERATOR 7 @>,
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OPERATOR 8 <@,
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OPERATOR 13 @,
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OPERATOR 14 ~,
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OPERATOR 20 @@ (_int4, query_int),
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FUNCTION 1 g_int_consistent (internal, _int4, int4),
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FUNCTION 2 g_int_union (internal, internal),
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FUNCTION 3 g_int_compress (internal),
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FUNCTION 4 g_int_decompress (internal),
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FUNCTION 5 g_int_penalty (internal, internal, internal),
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FUNCTION 6 g_int_picksplit (internal, internal),
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FUNCTION 7 g_int_same (_int4, _int4, internal);
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---------------------------------------------
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-- intbig
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---------------------------------------------
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-- define the GiST support methods
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CREATE FUNCTION _intbig_in(cstring)
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RETURNS intbig_gkey
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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 _intbig_out(intbig_gkey)
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RETURNS cstring
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AS 'MODULE_PATHNAME'
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LANGUAGE C RETURNS NULL ON NULL INPUT IMMUTABLE;
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CREATE TYPE intbig_gkey (
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INTERNALLENGTH = -1,
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INPUT = _intbig_in,
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OUTPUT = _intbig_out
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);
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CREATE FUNCTION g_intbig_consistent(internal,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 g_intbig_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 g_intbig_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 g_intbig_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 g_intbig_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 g_intbig_union(internal, 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 g_intbig_same(internal, 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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-- register the opclass for indexing (not as default)
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CREATE OPERATOR CLASS gist__intbig_ops
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FOR TYPE _int4 USING gist
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AS
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OPERATOR 3 && RECHECK,
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OPERATOR 6 = (anyarray, anyarray) RECHECK,
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OPERATOR 7 @> RECHECK,
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OPERATOR 8 <@ RECHECK,
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OPERATOR 13 @ RECHECK,
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OPERATOR 14 ~ RECHECK,
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OPERATOR 20 @@ (_int4, query_int) RECHECK,
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FUNCTION 1 g_intbig_consistent (internal, internal, int4),
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FUNCTION 2 g_intbig_union (internal, internal),
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FUNCTION 3 g_intbig_compress (internal),
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FUNCTION 4 g_intbig_decompress (internal),
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FUNCTION 5 g_intbig_penalty (internal, internal, internal),
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FUNCTION 6 g_intbig_picksplit (internal, internal),
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FUNCTION 7 g_intbig_same (internal, internal, internal),
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STORAGE intbig_gkey;
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--GIN
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--mark built-in gin's _int4_ops as non default
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update pg_catalog.pg_opclass set opcdefault = 'f'
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where opcmethod = (select oid from pg_catalog.pg_am where amname='gin') and
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opcname = '_int4_ops';
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CREATE FUNCTION ginint4_queryextract(internal, internal, int2)
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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 ginint4_consistent(internal, int2, 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 OPERATOR CLASS gin__int_ops
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DEFAULT FOR TYPE _int4 USING gin
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AS
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OPERATOR 3 &&,
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OPERATOR 6 = (anyarray, anyarray) RECHECK,
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OPERATOR 7 @>,
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OPERATOR 8 <@ RECHECK,
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OPERATOR 13 @,
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OPERATOR 14 ~ RECHECK,
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OPERATOR 20 @@ (_int4, query_int),
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FUNCTION 1 btint4cmp (int4, int4),
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FUNCTION 2 ginarrayextract (anyarray, internal),
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FUNCTION 3 ginint4_queryextract (internal, internal, int2),
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FUNCTION 4 ginint4_consistent (internal, int2, internal),
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STORAGE int4;
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COMMIT;
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