text: /*
   * Copyright 2019 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.
   */
  
  -- ---------- ---------- ---------- ---------- ---------- ---------- ----------
  -- B-tree Operator Class (opclass_btree.c)
  -- ---------- ---------- ---------- ---------- ---------- ---------- ----------
  
  -- Availability: 0.1.0
  CREATE OR REPLACE FUNCTION h3index_cmp(h3index, h3index) RETURNS integer
      AS 'h3' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
  
  -- Availability: 0.1.0
  CREATE OPERATOR CLASS btree_h3index_ops DEFAULT FOR TYPE h3index USING btree AS
      OPERATOR  1  <  ,
      OPERATOR  2  <= ,
      OPERATOR  3   = ,
      OPERATOR  4  >= ,
      OPERATOR  5  >  ,
      FUNCTION  1  h3index_cmp(h3index, h3index);
  