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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
--
-- agtype - access operators ( ->, ->> )
--
CREATE FUNCTION ag_catalog.agtype_object_field(agtype, text)
RETURNS agtype
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype object field
CREATE OPERATOR -> (
LEFTARG = agtype,
RIGHTARG = text,
FUNCTION = ag_catalog.agtype_object_field
);
CREATE FUNCTION ag_catalog.agtype_object_field_text(agtype, text)
RETURNS text
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype object field as text
CREATE OPERATOR ->> (
LEFTARG = agtype,
RIGHTARG = text,
FUNCTION = ag_catalog.agtype_object_field_text
);
CREATE FUNCTION ag_catalog.agtype_object_field_agtype(agtype, agtype)
RETURNS agtype
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype object field or array element
CREATE OPERATOR -> (
LEFTARG = agtype,
RIGHTARG = agtype,
FUNCTION = ag_catalog.agtype_object_field_agtype
);
CREATE FUNCTION ag_catalog.agtype_object_field_text_agtype(agtype, agtype)
RETURNS text
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype object field or array element as text
CREATE OPERATOR ->> (
LEFTARG = agtype,
RIGHTARG = agtype,
FUNCTION = ag_catalog.agtype_object_field_text_agtype
);
CREATE FUNCTION ag_catalog.agtype_array_element(agtype, int4)
RETURNS agtype
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype array element
CREATE OPERATOR -> (
LEFTARG = agtype,
RIGHTARG = int4,
FUNCTION = ag_catalog.agtype_array_element
);
CREATE FUNCTION ag_catalog.agtype_array_element_text(agtype, int4)
RETURNS text
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- get agtype array element as text
CREATE OPERATOR ->> (
LEFTARG = agtype,
RIGHTARG = int4,
FUNCTION = ag_catalog.agtype_array_element_text
);
CREATE FUNCTION ag_catalog.agtype_extract_path(agtype, agtype)
RETURNS agtype
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- return the extracted path as agtype
CREATE OPERATOR #> (
LEFTARG = agtype,
RIGHTARG = agtype,
FUNCTION = ag_catalog.agtype_extract_path
);
CREATE FUNCTION ag_catalog.agtype_extract_path_text(agtype, agtype)
RETURNS text
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
-- return the extracted path as text
CREATE OPERATOR #>> (
LEFTARG = agtype,
RIGHTARG = agtype,
FUNCTION = ag_catalog.agtype_extract_path_text
);
--
-- agtype - access operators
--
-- for series of `map.key` and `container[expr]`
CREATE FUNCTION ag_catalog.agtype_access_operator(VARIADIC agtype[])
RETURNS agtype
LANGUAGE c
IMMUTABLE
RETURNS NULL ON NULL INPUT
PARALLEL SAFE
AS 'MODULE_PATHNAME';
CREATE FUNCTION ag_catalog.agtype_access_slice(agtype, agtype, agtype)
RETURNS agtype
LANGUAGE c
IMMUTABLE
PARALLEL SAFE
AS 'MODULE_PATHNAME';
CREATE FUNCTION ag_catalog.agtype_in_operator(agtype, agtype)
RETURNS agtype
LANGUAGE c
IMMUTABLE
PARALLEL SAFE
AS 'MODULE_PATHNAME';
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