Adding upstream version 16.2.upstream/16.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3434 insertions, 0 deletions

diff --git a/contrib/isn/isn--1.1.sql b/contrib/isn/isn--1.1.sql
new file mode 100644
index 0000000..5206961
--- /dev/null
+++ b/contrib/isn/isn--1.1.sql
@@ -0,0 +1,3434 @@
+/* contrib/isn/isn--1.1.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION isn" to load this file. \quit
+
+-- Example:
+--   create table test ( id isbn );
+--   insert into test values('978-0-393-04002-9');
+--
+--   select isbn('978-0-393-04002-9');
+--   select isbn13('0-901690-54-6');
+--
+
+--
+--	Input and output functions and data types:
+--
+---------------------------------------------------
+CREATE FUNCTION ean13_in(cstring)
+	RETURNS ean13
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION ean13_out(ean13)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE ean13 (
+	INPUT = ean13_in,
+	OUTPUT = ean13_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE ean13
+	IS 'International European Article Number (EAN13)';
+
+CREATE FUNCTION isbn13_in(cstring)
+	RETURNS isbn13
+	AS 'MODULE_PATHNAME', 'isbn_in'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION ean13_out(isbn13)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE isbn13 (
+	INPUT = isbn13_in,
+	OUTPUT = ean13_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE isbn13
+	IS 'International Standard Book Number 13 (ISBN13)';
+
+CREATE FUNCTION ismn13_in(cstring)
+	RETURNS ismn13
+	AS 'MODULE_PATHNAME', 'ismn_in'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION ean13_out(ismn13)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE ismn13 (
+	INPUT = ismn13_in,
+	OUTPUT = ean13_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE ismn13
+	IS 'International Standard Music Number 13 (ISMN13)';
+
+CREATE FUNCTION issn13_in(cstring)
+	RETURNS issn13
+	AS 'MODULE_PATHNAME', 'issn_in'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION ean13_out(issn13)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE issn13 (
+	INPUT = issn13_in,
+	OUTPUT = ean13_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE issn13
+	IS 'International Standard Serial Number 13 (ISSN13)';
+
+-- Short format:
+
+CREATE FUNCTION isbn_in(cstring)
+	RETURNS isbn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isn_out(isbn)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE isbn (
+	INPUT = isbn_in,
+	OUTPUT = isn_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE isbn
+	IS 'International Standard Book Number (ISBN)';
+
+CREATE FUNCTION ismn_in(cstring)
+	RETURNS ismn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isn_out(ismn)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE ismn (
+	INPUT = ismn_in,
+	OUTPUT = isn_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE ismn
+	IS 'International Standard Music Number (ISMN)';
+
+CREATE FUNCTION issn_in(cstring)
+	RETURNS issn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isn_out(issn)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE issn (
+	INPUT = issn_in,
+	OUTPUT = isn_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE issn
+	IS 'International Standard Serial Number (ISSN)';
+
+CREATE FUNCTION upc_in(cstring)
+	RETURNS upc
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isn_out(upc)
+	RETURNS cstring
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE TYPE upc (
+	INPUT = upc_in,
+	OUTPUT = isn_out,
+	LIKE = pg_catalog.int8
+);
+COMMENT ON TYPE upc
+	IS 'Universal Product Code (UPC)';
+
+--
+-- Operator functions:
+--
+---------------------------------------------------
+-- EAN13:
+CREATE FUNCTION isnlt(ean13, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, isbn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, ismn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, issn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, issn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, issn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, issn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, issn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, issn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, isbn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, isbn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, isbn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, isbn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, isbn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, isbn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, ismn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, ismn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, ismn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, ismn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, ismn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, ismn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, issn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, issn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, issn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, issn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, issn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, issn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ean13, upc)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ean13, upc)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ean13, upc)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ean13, upc)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ean13, upc)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ean13, upc)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISBN13:
+CREATE FUNCTION isnlt(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn13, isbn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn13, isbn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn13, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISBN:
+CREATE FUNCTION isnlt(isbn, isbn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn, isbn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn, isbn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn, isbn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn, isbn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn, isbn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn, isbn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(isbn, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(isbn, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(isbn, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(isbn, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(isbn, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(isbn, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISMN13:
+CREATE FUNCTION isnlt(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn13, ismn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn13, ismn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn13, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISMN:
+CREATE FUNCTION isnlt(ismn, ismn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn, ismn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn, ismn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn, ismn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn, ismn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn, ismn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn, ismn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(ismn, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(ismn, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(ismn, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(ismn, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(ismn, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(ismn, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISSN13:
+CREATE FUNCTION isnlt(issn13, issn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn13, issn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn13, issn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn13, issn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn13, issn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn13, issn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(issn13, issn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn13, issn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn13, issn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn13, issn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn13, issn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn13, issn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(issn13, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn13, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn13, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn13, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn13, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn13, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- ISSN:
+CREATE FUNCTION isnlt(issn, issn)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn, issn)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn, issn)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn, issn)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn, issn)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn, issn)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(issn, issn13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn, issn13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn, issn13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn, issn13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn, issn13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn, issn13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(issn, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(issn, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(issn, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(issn, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(issn, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(issn, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+---------------------------------------------------
+-- UPC:
+CREATE FUNCTION isnlt(upc, upc)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(upc, upc)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(upc, upc)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(upc, upc)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(upc, upc)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(upc, upc)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION isnlt(upc, ean13)
+	RETURNS boolean
+	AS 'int8lt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnle(upc, ean13)
+	RETURNS boolean
+	AS 'int8le'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isneq(upc, ean13)
+	RETURNS boolean
+	AS 'int8eq'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnge(upc, ean13)
+	RETURNS boolean
+	AS 'int8ge'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isngt(upc, ean13)
+	RETURNS boolean
+	AS 'int8gt'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION isnne(upc, ean13)
+	RETURNS boolean
+	AS 'int8ne'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+--
+-- Now the operators:
+--
+
+--
+-- EAN13 operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = issn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel);
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ean13,
+	RIGHTARG = upc,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISBN13 operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn13,
+	RIGHTARG = isbn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISBN operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn,
+	RIGHTARG = isbn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn,
+	RIGHTARG = isbn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = isbn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISMN13 operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn13,
+	RIGHTARG = ismn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISMN operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn,
+	RIGHTARG = ismn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn,
+	RIGHTARG = ismn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = ismn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISSN13 operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn13,
+	RIGHTARG = issn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn13,
+	RIGHTARG = issn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn13,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- ISSN operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn,
+	RIGHTARG = issn,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn,
+	RIGHTARG = issn13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = issn,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- UPC operators:
+--
+---------------------------------------------------
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = upc,
+	RIGHTARG = upc,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+CREATE OPERATOR < (
+	PROCEDURE = isnlt,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = >,
+	NEGATOR = >=,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR <= (
+	PROCEDURE = isnle,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = >=,
+	NEGATOR = >,
+	RESTRICT = scalarltsel,
+	JOIN = scalarltjoinsel);
+CREATE OPERATOR = (
+	PROCEDURE = isneq,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = =,
+	NEGATOR = <>,
+	RESTRICT = eqsel,
+	JOIN = eqjoinsel,
+	MERGES,
+	HASHES);
+CREATE OPERATOR >= (
+	PROCEDURE = isnge,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = <=,
+	NEGATOR = <,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR > (
+	PROCEDURE = isngt,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = <,
+	NEGATOR = <=,
+	RESTRICT = scalargtsel,
+	JOIN = scalargtjoinsel );
+CREATE OPERATOR <> (
+	PROCEDURE = isnne,
+	LEFTARG = upc,
+	RIGHTARG = ean13,
+	COMMUTATOR = <>,
+	NEGATOR = =,
+	RESTRICT = neqsel,
+	JOIN = neqjoinsel);
+
+--
+-- Operator families for the various operator classes:
+--
+---------------------------------------------------
+
+CREATE OPERATOR FAMILY isn_ops USING btree;
+CREATE OPERATOR FAMILY isn_ops USING hash;
+
+--
+-- Operator classes:
+--
+---------------------------------------------------
+-- EAN13:
+CREATE FUNCTION btean13cmp(ean13, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ean13_ops DEFAULT
+	FOR TYPE ean13 USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btean13cmp(ean13, ean13);
+
+CREATE FUNCTION hashean13(ean13)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal' IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ean13_ops DEFAULT
+	FOR TYPE ean13 USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashean13(ean13);
+
+-- EAN13 vs other types:
+CREATE FUNCTION btean13cmp(ean13, isbn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, ismn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, issn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, isbn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, ismn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, issn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btean13cmp(ean13, upc)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (ean13, isbn13),
+	OPERATOR 1  < (ean13, ismn13),
+	OPERATOR 1  < (ean13, issn13),
+	OPERATOR 1  < (ean13, isbn),
+	OPERATOR 1  < (ean13, ismn),
+	OPERATOR 1  < (ean13, issn),
+	OPERATOR 1  < (ean13, upc),
+	OPERATOR 2  <= (ean13, isbn13),
+	OPERATOR 2  <= (ean13, ismn13),
+	OPERATOR 2  <= (ean13, issn13),
+	OPERATOR 2  <= (ean13, isbn),
+	OPERATOR 2  <= (ean13, ismn),
+	OPERATOR 2  <= (ean13, issn),
+	OPERATOR 2  <= (ean13, upc),
+	OPERATOR 3  = (ean13, isbn13),
+	OPERATOR 3  = (ean13, ismn13),
+	OPERATOR 3  = (ean13, issn13),
+	OPERATOR 3  = (ean13, isbn),
+	OPERATOR 3  = (ean13, ismn),
+	OPERATOR 3  = (ean13, issn),
+	OPERATOR 3  = (ean13, upc),
+	OPERATOR 4  >= (ean13, isbn13),
+	OPERATOR 4  >= (ean13, ismn13),
+	OPERATOR 4  >= (ean13, issn13),
+	OPERATOR 4  >= (ean13, isbn),
+	OPERATOR 4  >= (ean13, ismn),
+	OPERATOR 4  >= (ean13, issn),
+	OPERATOR 4  >= (ean13, upc),
+	OPERATOR 5  > (ean13, isbn13),
+	OPERATOR 5  > (ean13, ismn13),
+	OPERATOR 5  > (ean13, issn13),
+	OPERATOR 5  > (ean13, isbn),
+	OPERATOR 5  > (ean13, ismn),
+	OPERATOR 5  > (ean13, issn),
+	OPERATOR 5  > (ean13, upc),
+	FUNCTION 1  btean13cmp(ean13, isbn13),
+	FUNCTION 1  btean13cmp(ean13, ismn13),
+	FUNCTION 1  btean13cmp(ean13, issn13),
+	FUNCTION 1  btean13cmp(ean13, isbn),
+	FUNCTION 1  btean13cmp(ean13, ismn),
+	FUNCTION 1  btean13cmp(ean13, issn),
+	FUNCTION 1  btean13cmp(ean13, upc);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (ean13, isbn13),
+	OPERATOR 1  = (ean13, ismn13),
+	OPERATOR 1  = (ean13, issn13),
+	OPERATOR 1  = (ean13, isbn),
+	OPERATOR 1  = (ean13, ismn),
+	OPERATOR 1  = (ean13, issn),
+	OPERATOR 1  = (ean13, upc);
+
+---------------------------------------------------
+-- ISBN13:
+CREATE FUNCTION btisbn13cmp(isbn13, isbn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS isbn13_ops DEFAULT
+	FOR TYPE isbn13 USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btisbn13cmp(isbn13, isbn13);
+
+CREATE FUNCTION hashisbn13(isbn13)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS isbn13_ops DEFAULT
+	FOR TYPE isbn13 USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashisbn13(isbn13);
+
+-- ISBN13 vs other types:
+CREATE FUNCTION btisbn13cmp(isbn13, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btisbn13cmp(isbn13, isbn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (isbn13, ean13),
+	OPERATOR 1  < (isbn13, isbn),
+	OPERATOR 2  <= (isbn13, ean13),
+	OPERATOR 2  <= (isbn13, isbn),
+	OPERATOR 3  = (isbn13, ean13),
+	OPERATOR 3  = (isbn13, isbn),
+	OPERATOR 4  >= (isbn13, ean13),
+	OPERATOR 4  >= (isbn13, isbn),
+	OPERATOR 5  > (isbn13, ean13),
+	OPERATOR 5  > (isbn13, isbn),
+	FUNCTION 1  btisbn13cmp(isbn13, ean13),
+	FUNCTION 1  btisbn13cmp(isbn13, isbn);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (isbn13, ean13),
+	OPERATOR 1  = (isbn13, isbn);
+
+---------------------------------------------------
+-- ISBN:
+CREATE FUNCTION btisbncmp(isbn, isbn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS isbn_ops DEFAULT
+	FOR TYPE isbn USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btisbncmp(isbn, isbn);
+
+CREATE FUNCTION hashisbn(isbn)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS isbn_ops DEFAULT
+	FOR TYPE isbn USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashisbn(isbn);
+
+-- ISBN vs other types:
+CREATE FUNCTION btisbncmp(isbn, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btisbncmp(isbn, isbn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (isbn, ean13),
+	OPERATOR 1  < (isbn, isbn13),
+	OPERATOR 2  <= (isbn, ean13),
+	OPERATOR 2  <= (isbn, isbn13),
+	OPERATOR 3  = (isbn, ean13),
+	OPERATOR 3  = (isbn, isbn13),
+	OPERATOR 4  >= (isbn, ean13),
+	OPERATOR 4  >= (isbn, isbn13),
+	OPERATOR 5  > (isbn, ean13),
+	OPERATOR 5  > (isbn, isbn13),
+	FUNCTION 1  btisbncmp(isbn, ean13),
+	FUNCTION 1  btisbncmp(isbn, isbn13);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (isbn, ean13),
+	OPERATOR 1  = (isbn, isbn13);
+
+---------------------------------------------------
+-- ISMN13:
+CREATE FUNCTION btismn13cmp(ismn13, ismn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ismn13_ops DEFAULT
+	FOR TYPE ismn13 USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btismn13cmp(ismn13, ismn13);
+
+CREATE FUNCTION hashismn13(ismn13)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ismn13_ops DEFAULT
+	FOR TYPE ismn13 USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashismn13(ismn13);
+
+-- ISMN13 vs other types:
+CREATE FUNCTION btismn13cmp(ismn13, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btismn13cmp(ismn13, ismn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (ismn13, ean13),
+	OPERATOR 1  < (ismn13, ismn),
+	OPERATOR 2  <= (ismn13, ean13),
+	OPERATOR 2  <= (ismn13, ismn),
+	OPERATOR 3  = (ismn13, ean13),
+	OPERATOR 3  = (ismn13, ismn),
+	OPERATOR 4  >= (ismn13, ean13),
+	OPERATOR 4  >= (ismn13, ismn),
+	OPERATOR 5  > (ismn13, ean13),
+	OPERATOR 5  > (ismn13, ismn),
+	FUNCTION 1  btismn13cmp(ismn13, ean13),
+	FUNCTION 1  btismn13cmp(ismn13, ismn);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (ismn13, ean13),
+	OPERATOR 1  = (ismn13, ismn);
+
+---------------------------------------------------
+-- ISMN:
+CREATE FUNCTION btismncmp(ismn, ismn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ismn_ops DEFAULT
+	FOR TYPE ismn USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btismncmp(ismn, ismn);
+
+CREATE FUNCTION hashismn(ismn)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS ismn_ops DEFAULT
+	FOR TYPE ismn USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashismn(ismn);
+
+-- ISMN vs other types:
+CREATE FUNCTION btismncmp(ismn, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btismncmp(ismn, ismn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (ismn, ean13),
+	OPERATOR 1  < (ismn, ismn13),
+	OPERATOR 2  <= (ismn, ean13),
+	OPERATOR 2  <= (ismn, ismn13),
+	OPERATOR 3  = (ismn, ean13),
+	OPERATOR 3  = (ismn, ismn13),
+	OPERATOR 4  >= (ismn, ean13),
+	OPERATOR 4  >= (ismn, ismn13),
+	OPERATOR 5  > (ismn, ean13),
+	OPERATOR 5  > (ismn, ismn13),
+	FUNCTION 1  btismncmp(ismn, ean13),
+	FUNCTION 1  btismncmp(ismn, ismn13);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (ismn, ean13),
+	OPERATOR 1  = (ismn, ismn13);
+
+---------------------------------------------------
+-- ISSN13:
+CREATE FUNCTION btissn13cmp(issn13, issn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS issn13_ops DEFAULT
+	FOR TYPE issn13 USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btissn13cmp(issn13, issn13);
+
+CREATE FUNCTION hashissn13(issn13)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS issn13_ops DEFAULT
+	FOR TYPE issn13 USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashissn13(issn13);
+
+-- ISSN13 vs other types:
+CREATE FUNCTION btissn13cmp(issn13, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btissn13cmp(issn13, issn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (issn13, ean13),
+	OPERATOR 1  < (issn13, issn),
+	OPERATOR 2  <= (issn13, ean13),
+	OPERATOR 2  <= (issn13, issn),
+	OPERATOR 3  = (issn13, ean13),
+	OPERATOR 3  = (issn13, issn),
+	OPERATOR 4  >= (issn13, ean13),
+	OPERATOR 4  >= (issn13, issn),
+	OPERATOR 5  > (issn13, ean13),
+	OPERATOR 5  > (issn13, issn),
+	FUNCTION 1  btissn13cmp(issn13, ean13),
+	FUNCTION 1  btissn13cmp(issn13, issn);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (issn13, ean13),
+	OPERATOR 1  = (issn13, issn);
+
+---------------------------------------------------
+-- ISSN:
+CREATE FUNCTION btissncmp(issn, issn)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS issn_ops DEFAULT
+	FOR TYPE issn USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btissncmp(issn, issn);
+
+CREATE FUNCTION hashissn(issn)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS issn_ops DEFAULT
+	FOR TYPE issn USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashissn(issn);
+
+-- ISSN vs other types:
+CREATE FUNCTION btissncmp(issn, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION btissncmp(issn, issn13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (issn, ean13),
+	OPERATOR 1  < (issn, issn13),
+	OPERATOR 2  <= (issn, ean13),
+	OPERATOR 2  <= (issn, issn13),
+	OPERATOR 3  = (issn, ean13),
+	OPERATOR 3  = (issn, issn13),
+	OPERATOR 4  >= (issn, ean13),
+	OPERATOR 4  >= (issn, issn13),
+	OPERATOR 5  > (issn, ean13),
+	OPERATOR 5  > (issn, issn13),
+	FUNCTION 1  btissncmp(issn, ean13),
+	FUNCTION 1  btissncmp(issn, issn13);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (issn, ean13),
+	OPERATOR 1  = (issn, issn13);
+
+---------------------------------------------------
+-- UPC:
+CREATE FUNCTION btupccmp(upc, upc)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS upc_ops DEFAULT
+	FOR TYPE upc USING btree FAMILY isn_ops AS
+	OPERATOR 1  <,
+	OPERATOR 2  <=,
+	OPERATOR 3  =,
+	OPERATOR 4  >=,
+	OPERATOR 5  >,
+	FUNCTION 1  btupccmp(upc, upc);
+
+CREATE FUNCTION hashupc(upc)
+	RETURNS int4
+	AS 'hashint8'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE OPERATOR CLASS upc_ops DEFAULT
+	FOR TYPE upc USING hash FAMILY isn_ops AS
+	OPERATOR 1  =,
+	FUNCTION 1  hashupc(upc);
+
+-- UPC vs other types:
+CREATE FUNCTION btupccmp(upc, ean13)
+	RETURNS int4
+	AS 'btint8cmp'
+	LANGUAGE 'internal'
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+ALTER OPERATOR FAMILY isn_ops USING btree ADD
+	OPERATOR 1  < (upc, ean13),
+	OPERATOR 2  <= (upc, ean13),
+	OPERATOR 3  = (upc, ean13),
+	OPERATOR 4  >= (upc, ean13),
+	OPERATOR 5  > (upc, ean13),
+	FUNCTION 1  btupccmp(upc, ean13);
+
+ALTER OPERATOR FAMILY isn_ops USING hash ADD
+	OPERATOR 1  = (upc, ean13);
+
+--
+-- Type casts:
+--
+---------------------------------------------------
+CREATE FUNCTION isbn13(ean13)
+RETURNS isbn13
+AS 'MODULE_PATHNAME', 'isbn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION ismn13(ean13)
+RETURNS ismn13
+AS 'MODULE_PATHNAME', 'ismn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION issn13(ean13)
+RETURNS issn13
+AS 'MODULE_PATHNAME', 'issn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION isbn(ean13)
+RETURNS isbn
+AS 'MODULE_PATHNAME', 'isbn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION ismn(ean13)
+RETURNS ismn
+AS 'MODULE_PATHNAME', 'ismn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION issn(ean13)
+RETURNS issn
+AS 'MODULE_PATHNAME', 'issn_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+CREATE FUNCTION upc(ean13)
+RETURNS upc
+AS 'MODULE_PATHNAME', 'upc_cast_from_ean13'
+LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
+
+
+CREATE CAST (ean13 AS isbn13) WITH FUNCTION isbn13(ean13);
+CREATE CAST (ean13 AS isbn) WITH FUNCTION isbn(ean13);
+CREATE CAST (ean13 AS ismn13) WITH FUNCTION ismn13(ean13);
+CREATE CAST (ean13 AS ismn) WITH FUNCTION ismn(ean13);
+CREATE CAST (ean13 AS issn13) WITH FUNCTION issn13(ean13);
+CREATE CAST (ean13 AS issn) WITH FUNCTION issn(ean13);
+CREATE CAST (ean13 AS upc) WITH FUNCTION upc(ean13);
+
+CREATE CAST (isbn13 AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (isbn AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (ismn13 AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (ismn AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (issn13 AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (issn AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (upc AS ean13) WITHOUT FUNCTION AS ASSIGNMENT;
+
+CREATE CAST (isbn AS isbn13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (isbn13 AS isbn) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (ismn AS ismn13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (ismn13 AS ismn) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (issn AS issn13) WITHOUT FUNCTION AS ASSIGNMENT;
+CREATE CAST (issn13 AS issn) WITHOUT FUNCTION AS ASSIGNMENT;
+
+--
+-- Validation stuff for lose types:
+--
+CREATE FUNCTION make_valid(ean13)
+	RETURNS ean13
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(isbn13)
+	RETURNS isbn13
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(ismn13)
+	RETURNS ismn13
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(issn13)
+	RETURNS issn13
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(isbn)
+	RETURNS isbn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(ismn)
+	RETURNS ismn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(issn)
+	RETURNS issn
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION make_valid(upc)
+	RETURNS upc
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+CREATE FUNCTION is_valid(ean13)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(isbn13)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(ismn13)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(issn13)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(isbn)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(ismn)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(issn)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+CREATE FUNCTION is_valid(upc)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL SAFE;
+
+--
+-- isn_weak(boolean) - Sets the weak input mode.
+-- This function is intended for testing use only!
+--
+CREATE FUNCTION isn_weak(boolean)
+	RETURNS boolean
+	AS 'MODULE_PATHNAME', 'accept_weak_input'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL RESTRICTED;
+
+--
+-- isn_weak() - Gets the weak input mode status
+--
+CREATE FUNCTION isn_weak()
+	RETURNS boolean
+	AS 'MODULE_PATHNAME', 'weak_input_status'
+	LANGUAGE C
+	IMMUTABLE STRICT
+	PARALLEL RESTRICTED;