text: /*
   * 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.
   */
  
  #include "postgres.h"
  
  #include "fmgr.h"
  
  PG_FUNCTION_INFO_V1(cypher);
  
  Datum cypher(PG_FUNCTION_ARGS)
  {
      const char *s;
  
      s = PG_ARGISNULL(0) ? "NULL" : PG_GETARG_CSTRING(0);
  
      ereport(ERROR, (errmsg_internal("unhandled cypher(cstring) function call"),
                      errdetail_internal("%s", s)));
  
      PG_RETURN_NULL();
  }
  
  PG_FUNCTION_INFO_V1(_cypher_create_clause);
  
  Datum _cypher_create_clause(PG_FUNCTION_ARGS)
  {
      PG_RETURN_NULL();
  }
  
  PG_FUNCTION_INFO_V1(_cypher_set_clause);
  
  Datum _cypher_set_clause(PG_FUNCTION_ARGS)
  {
      PG_RETURN_NULL();
  }
  