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451 lines
9.7 KiB
MySQL
451 lines
9.7 KiB
MySQL
/* $PostgreSQL: pgsql/contrib/citext/citext.sql.in,v 1.1 2008/07/29 18:31:20 tgl Exp $ */
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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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--
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-- PostgreSQL code for CITEXT.
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--
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-- Most I/O functions, and a few others, piggyback on the "text" type
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-- functions via the implicit cast to text.
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--
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--
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-- Shell type to keep things a bit quieter.
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--
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CREATE TYPE citext;
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--
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-- Input and output functions.
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--
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CREATE OR REPLACE FUNCTION citextin(cstring)
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RETURNS citext
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AS 'textin'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citextout(citext)
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RETURNS cstring
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AS 'textout'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citextrecv(internal)
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RETURNS citext
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AS 'textrecv'
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LANGUAGE 'internal' STABLE STRICT;
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CREATE OR REPLACE FUNCTION citextsend(citext)
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RETURNS bytea
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AS 'textsend'
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LANGUAGE 'internal' STABLE STRICT;
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--
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-- The type itself.
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--
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CREATE TYPE citext (
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INPUT = citextin,
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OUTPUT = citextout,
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RECEIVE = citextrecv,
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SEND = citextsend,
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INTERNALLENGTH = VARIABLE,
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STORAGE = extended
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);
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--
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-- A single cast function, since bpchar needs to have its whitespace trimmed
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-- before it's cast to citext.
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--
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CREATE OR REPLACE FUNCTION citext(bpchar)
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RETURNS citext
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AS 'rtrim1'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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--
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-- Implicit and assignment type casts.
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--
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CREATE CAST (citext AS text) WITHOUT FUNCTION AS IMPLICIT;
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CREATE CAST (citext AS varchar) WITHOUT FUNCTION AS IMPLICIT;
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CREATE CAST (citext AS bpchar) WITHOUT FUNCTION AS ASSIGNMENT;
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CREATE CAST (text AS citext) WITHOUT FUNCTION AS ASSIGNMENT;
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CREATE CAST (varchar AS citext) WITHOUT FUNCTION AS ASSIGNMENT;
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CREATE CAST (bpchar AS citext) WITH FUNCTION citext(bpchar) AS ASSIGNMENT;
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--
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-- Operator Functions.
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--
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CREATE OR REPLACE FUNCTION citext_eq( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_ne( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_lt( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_le( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_gt( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_ge( citext, citext )
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RETURNS bool
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AS 'MODULE_PATHNAME'
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LANGUAGE C IMMUTABLE STRICT;
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-- We overload || just to preserve "citext-ness" of the result.
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CREATE OR REPLACE FUNCTION textcat(citext, citext)
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RETURNS citext
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AS 'textcat'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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--
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-- Operators.
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--
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CREATE OPERATOR = (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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COMMUTATOR = =,
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NEGATOR = <>,
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PROCEDURE = citext_eq,
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RESTRICT = eqsel,
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JOIN = eqjoinsel,
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HASHES,
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MERGES
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);
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CREATE OPERATOR <> (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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NEGATOR = =,
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COMMUTATOR = <>,
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PROCEDURE = citext_ne,
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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 = CITEXT,
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RIGHTARG = CITEXT,
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NEGATOR = >=,
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COMMUTATOR = >,
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PROCEDURE = citext_lt,
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RESTRICT = scalarltsel,
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JOIN = scalarltjoinsel
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);
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CREATE OPERATOR <= (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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NEGATOR = >,
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COMMUTATOR = >=,
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PROCEDURE = citext_le,
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RESTRICT = scalarltsel,
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JOIN = scalarltjoinsel
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);
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CREATE OPERATOR >= (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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NEGATOR = <,
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COMMUTATOR = <=,
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PROCEDURE = citext_ge,
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RESTRICT = scalargtsel,
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JOIN = scalargtjoinsel
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);
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CREATE OPERATOR > (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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NEGATOR = <=,
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COMMUTATOR = <,
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PROCEDURE = citext_gt,
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RESTRICT = scalargtsel,
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JOIN = scalargtjoinsel
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);
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CREATE OPERATOR || (
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LEFTARG = CITEXT,
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RIGHTARG = CITEXT,
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PROCEDURE = textcat
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);
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--
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-- Support functions for indexing.
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--
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CREATE OR REPLACE FUNCTION citext_cmp(citext, citext)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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CREATE OR REPLACE FUNCTION citext_hash(citext)
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RETURNS int4
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AS 'MODULE_PATHNAME'
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LANGUAGE C STRICT IMMUTABLE;
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--
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-- The btree indexing operator class.
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--
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CREATE OPERATOR CLASS citext_ops
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DEFAULT FOR TYPE CITEXT USING btree AS
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OPERATOR 1 < (citext, citext),
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OPERATOR 2 <= (citext, citext),
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OPERATOR 3 = (citext, citext),
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OPERATOR 4 >= (citext, citext),
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OPERATOR 5 > (citext, citext),
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FUNCTION 1 citext_cmp(citext, citext);
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--
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-- The hash indexing operator class.
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--
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CREATE OPERATOR CLASS citext_ops
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DEFAULT FOR TYPE citext USING hash AS
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OPERATOR 1 = (citext, citext),
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FUNCTION 1 citext_hash(citext);
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--
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-- Aggregates.
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--
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CREATE OR REPLACE FUNCTION citext_smaller(citext, citext)
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RETURNS citext
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION citext_larger(citext, citext)
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RETURNS citext
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AS 'MODULE_PATHNAME'
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LANGUAGE 'C' IMMUTABLE STRICT;
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CREATE AGGREGATE min(citext) (
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SFUNC = citext_smaller,
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STYPE = citext,
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SORTOP = <
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);
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CREATE AGGREGATE max(citext) (
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SFUNC = citext_larger,
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STYPE = citext,
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SORTOP = >
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);
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--
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-- Miscellaneous functions
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-- These exist to preserve the "citext-ness" of the input.
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--
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CREATE OR REPLACE FUNCTION lower(citext)
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RETURNS citext AS 'lower'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION upper(citext)
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RETURNS citext AS 'upper'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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-- needed to avoid "function is not unique" errors
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-- XXX find a better way to deal with this...
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CREATE FUNCTION quote_literal(citext)
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RETURNS text AS 'quote_literal'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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--
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-- CITEXT pattern matching.
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--
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CREATE OR REPLACE FUNCTION texticlike(citext, citext)
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RETURNS bool AS 'texticlike'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticnlike(citext, citext)
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RETURNS bool AS 'texticnlike'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticregexeq(citext, citext)
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RETURNS bool AS 'texticregexeq'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticregexne(citext, citext)
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RETURNS bool AS 'texticregexne'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OPERATOR ~ (
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PROCEDURE = texticregexeq,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = !~,
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RESTRICT = icregexeqsel,
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JOIN = icregexeqjoinsel
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);
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CREATE OPERATOR ~* (
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PROCEDURE = texticregexeq,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = !~*,
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RESTRICT = icregexeqsel,
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JOIN = icregexeqjoinsel
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);
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CREATE OPERATOR !~ (
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PROCEDURE = texticregexne,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = ~,
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RESTRICT = icregexnesel,
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JOIN = icregexnejoinsel
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);
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CREATE OPERATOR !~* (
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PROCEDURE = texticregexne,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = ~*,
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RESTRICT = icregexnesel,
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JOIN = icregexnejoinsel
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);
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CREATE OPERATOR ~~ (
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PROCEDURE = texticlike,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = !~~,
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RESTRICT = iclikesel,
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JOIN = iclikejoinsel
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);
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CREATE OPERATOR ~~* (
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PROCEDURE = texticlike,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = !~~*,
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RESTRICT = iclikesel,
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JOIN = iclikejoinsel
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);
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CREATE OPERATOR !~~ (
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PROCEDURE = texticnlike,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = ~~,
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RESTRICT = icnlikesel,
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JOIN = icnlikejoinsel
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);
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CREATE OPERATOR !~~* (
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PROCEDURE = texticnlike,
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LEFTARG = citext,
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RIGHTARG = citext,
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NEGATOR = ~~*,
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RESTRICT = icnlikesel,
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JOIN = icnlikejoinsel
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);
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--
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-- Matching citext to text.
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--
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CREATE OR REPLACE FUNCTION texticlike(citext, text)
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RETURNS bool AS 'texticlike'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticnlike(citext, text)
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RETURNS bool AS 'texticnlike'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticregexeq(citext, text)
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RETURNS bool AS 'texticregexeq'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OR REPLACE FUNCTION texticregexne(citext, text)
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RETURNS bool AS 'texticregexne'
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LANGUAGE 'internal' IMMUTABLE STRICT;
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CREATE OPERATOR ~ (
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PROCEDURE = texticregexeq,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = !~,
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RESTRICT = icregexeqsel,
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JOIN = icregexeqjoinsel
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);
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CREATE OPERATOR ~* (
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PROCEDURE = texticregexeq,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = !~*,
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RESTRICT = icregexeqsel,
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JOIN = icregexeqjoinsel
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);
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CREATE OPERATOR !~ (
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PROCEDURE = texticregexne,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = ~,
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RESTRICT = icregexnesel,
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JOIN = icregexnejoinsel
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);
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CREATE OPERATOR !~* (
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PROCEDURE = texticregexne,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = ~*,
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RESTRICT = icregexnesel,
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JOIN = icregexnejoinsel
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);
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CREATE OPERATOR ~~ (
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PROCEDURE = texticlike,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = !~~,
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RESTRICT = iclikesel,
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JOIN = iclikejoinsel
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);
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CREATE OPERATOR ~~* (
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PROCEDURE = texticlike,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = !~~*,
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RESTRICT = iclikesel,
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JOIN = iclikejoinsel
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);
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CREATE OPERATOR !~~ (
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PROCEDURE = texticnlike,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = ~~,
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RESTRICT = icnlikesel,
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JOIN = icnlikejoinsel
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);
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CREATE OPERATOR !~~* (
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PROCEDURE = texticnlike,
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LEFTARG = citext,
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RIGHTARG = text,
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NEGATOR = ~~*,
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RESTRICT = icnlikesel,
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JOIN = icnlikejoinsel
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);
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