// Copyright 2023 PingCAP, Inc.
//
// 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.

#pragma once

#include <Parsers/IParserBase.h>


namespace DB
{


/** Cases:
  *
  * Normal case:
  * INSERT INTO [db.]table (c1, c2, c3) VALUES (v11, v12, v13), (v21, v22, v23), ...
  * INSERT INTO [db.]table VALUES (v11, v12, v13), (v21, v22, v23), ...
  *
  * Insert of data in an arbitrary format.
  * The data itself comes after LF(line feed), if it exists, or after all the whitespace characters, otherwise.
  * INSERT INTO [db.]table (c1, c2, c3) FORMAT format \n ...
  * INSERT INTO [db.]table FORMAT format \n ...
  *
  * Insert the result of the SELECT query.
  * INSERT INTO [db.]table (c1, c2, c3) SELECT ...
  * INSERT INTO [db.]table SELECT ...
  */
class ParserInsertQuery : public IParserBase
{
private:
    const char * end;

    const char * getName() const override { return "INSERT query"; }
    bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;

public:
    ParserInsertQuery(const char * end)
        : end(end)
    {}
};

} // namespace DB