50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBASE_SQL_RESOLVER_CMD_OB_OB_HELP_STMT_
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#define OCEANBASE_SQL_RESOLVER_CMD_OB_OB_HELP_STMT_
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#include "lib/string/ob_string.h"
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#include "lib/container/ob_array.h"
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#include "common/row/ob_row_store.h"
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#include "sql/resolver/dml/ob_dml_stmt.h"
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namespace oceanbase
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{
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namespace sql
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{
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class ObHelpStmt : public ObDMLStmt
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{
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public:
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ObHelpStmt();
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virtual ~ObHelpStmt();
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int add_row(const common::ObNewRow &row) { return row_store_.add_row(row); }
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int clear_row_store()
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{
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row_store_.clear_rows();
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return common::OB_SUCCESS;
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}
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const common::ObRowStore& get_row_store() const { return row_store_; }
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int rollback_last_row() { return row_store_.rollback_last_row(); }
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int set_col_count(int64_t col_count) { return row_store_.set_col_count(col_count); }
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int64_t get_col_count() const { return row_store_.get_col_count(); }
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int get_col_name(int64_t idx, common::ObString &col_name);
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int64_t get_row_count() const { return row_store_.get_row_count(); }
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int add_col_name(common::ObString col_name);
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private:
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common::ObRowStore row_store_;
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common::ObSEArray<common::ObString, 3, common::ModulePageAllocator, true> col_names_;
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DISALLOW_COPY_AND_ASSIGN(ObHelpStmt);
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};
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}//sql
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}//observer
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#endif /*OCEANBASE_SQL_RESOLVER_CMD_OB_OB_HELP_STMT_*/
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