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.
  
  #pragma once
  
  #include <stdint.h>
  
  #include "exec/schema_scanner.h"
  
  namespace doris {
  
  class SchemaCollationsScanner : public SchemaScanner {
  public:
      SchemaCollationsScanner();
      virtual ~SchemaCollationsScanner();
  
      virtual Status get_next_row(Tuple* tuple, MemPool* pool, bool* eos);
  
  private:
      struct CollationStruct {
          const char* name;
          const char* charset;
          int64_t id;
          const char* is_default;
          const char* is_compile;
          int64_t sortlen;
      };
  
      Status fill_one_row(Tuple* tuple, MemPool* pool);
  
      int _index;
      static SchemaScanner::ColumnDesc _s_cols_columns[];
      static CollationStruct _s_collations[];
  };
  
  } // namespace doris
  