/*
 * Copyright 2022 Bytes & Brains
 *
 * Licensed 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.
 */

-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "ALTER EXTENSION h3_postgis UPDATE TO 'unreleased'" to load this file. \quit

CREATE OR REPLACE FUNCTION
    h3_cell_to_boundary_wkb(cell h3index) RETURNS bytea
AS 'h3' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE; COMMENT ON FUNCTION
    h3_cell_to_boundary_wkb(h3index)
IS 'Finds the boundary of the index, converts to EWKB.

Splits polygons when crossing 180th meridian.

This function has to return WKB since Postgres does not provide multipolygon type.';

CREATE OR REPLACE FUNCTION
    h3_cells_to_multi_polygon_wkb(h3index[]) RETURNS bytea
AS 'h3' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE; COMMENT ON FUNCTION
    h3_cells_to_multi_polygon_wkb(h3index[])
IS 'Create a LinkedGeoPolygon describing the outline(s) of a set of hexagons, converts to EWKB.

Splits polygons when crossing 180th meridian.';
