192 lines
3.5 KiB
SQL
192 lines
3.5 KiB
SQL
/*
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* SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
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*
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* SPDX-License-Identifier: PostgreSQL
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*/
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-- complain if script is sources in psql, rather than via CREATE EXTENSION
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\echo Use "CREATE EXTENSION vat" to load this file. \quit
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-- Example:
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-- create table test ( id vatin );
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-- insert into tast values('ES40404040D');
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--
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-- select vatin('ES40404040-D');
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--
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--
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-- Input and output functions and data types:
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--
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---------------------------------------------
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CREATE FUNCTION vatin_in(cstring)
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RETURNS vatin
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AS 'MODULE_PATHNAME'
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LANGUAGE C
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE FUNCTION vatin_out(vatin)
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RETURNS cstring
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AS 'textout'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE TYPE vatin (
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INPUT = vatin_in,
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OUTPUT = vatin_out,
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LIKE = pg_catalog.text
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);
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COMMENT ON TYPE vatin
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IS 'Value added tax identification number (VATIN)'
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;
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--
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-- Operator functions:
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--
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---------------------------------------------
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CREATE FUNCTION vatinlt(vatin, vatin)
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RETURNS boolean
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AS 'text_lt'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE FUNCTION vatinle(vatin, vatin)
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RETURNS boolean
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AS 'text_le'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE FUNCTION vatineq(vatin, vatin)
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RETURNS boolean
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AS 'texteq'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE;
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CREATE FUNCTION vatinge(vatin, vatin)
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RETURNS boolean
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AS 'text_ge'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE FUNCTION vatingt(vatin, vatin)
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RETURNS boolean
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AS 'text_gt'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE FUNCTION vatinne(vatin, vatin)
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RETURNS boolean
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AS 'textne'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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--
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-- Operators:
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--
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---------------------------------------------
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CREATE OPERATOR < (
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PROCEDURE = vatinlt,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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COMMUTATOR = >,
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NEGATOR = >=,
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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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PROCEDURE = vatinle,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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COMMUTATOR = >=,
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NEGATOR = >,
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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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PROCEDURE = vatineq,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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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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MERGES,
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HASHES
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);
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CREATE OPERATOR >= (
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PROCEDURE = vatinge,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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COMMUTATOR = <=,
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NEGATOR = <,
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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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PROCEDURE = vatingt,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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COMMUTATOR = <,
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NEGATOR = <=,
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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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PROCEDURE = vatinne,
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LEFTARG = vatin,
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RIGHTARG = vatin,
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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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--
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-- Operator families for the various operator classes:
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--
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---------------------------------------------
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CREATE OPERATOR FAMILY vatin_ops USING btree;
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CREATE OPERATOR FAMILY vatin_ops USING hash;
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--
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-- Operator classes:
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--
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---------------------------------------------
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CREATE FUNCTION btvatincmp(vatin, vatin)
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RETURNS int4
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AS 'bttextcmp'
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LANGUAGE 'internal'
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IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE OPERATOR CLASS vatin_ops DEFAULT
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FOR TYPE vatin USING btree FAMILY vatin_ops AS
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OPERATOR 1 <,
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OPERATOR 2 <=,
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OPERATOR 3 =,
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OPERATOR 4 >=,
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OPERATOR 5 >,
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FUNCTION 1 btvatincmp(vatin, vatin)
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;
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CREATE FUNCTION hashvatin(vatin)
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RETURNS int4
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AS 'hashtext'
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LANGUAGE 'internal' IMMUTABLE STRICT
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PARALLEL SAFE
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;
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CREATE OPERATOR CLASS vatin_ops DEFAULT
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FOR TYPE vatin USING hash FAMILY vatin_ops AS
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OPERATOR 1 =,
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FUNCTION 1 hashvatin(vatin)
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;
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