65 lines
2.3 KiB
C++
65 lines
2.3 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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#define USING_LOG_PREFIX SQL_ENG
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#include "sql/engine/expr/ob_expr_subquery_less_equal.h"
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#include "common/row/ob_row.h"
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#include "common/object/ob_obj_compare.h"
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#include "sql/engine/expr/ob_expr_less_equal.h"
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#include "sql/engine/expr/ob_expr_result_type_util.h"
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namespace oceanbase {
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using namespace common;
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namespace sql {
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ObExprSubQueryLessEqual::ObExprSubQueryLessEqual(ObIAllocator& alloc)
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: ObSubQueryRelationalExpr(alloc, T_OP_SQ_LE, N_SQ_LESS_EQUAL, 2, NOT_ROW_DIMENSION)
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{}
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ObExprSubQueryLessEqual::~ObExprSubQueryLessEqual()
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{}
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int ObExprSubQueryLessEqual::compare_single_row(
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const ObNewRow& left_row, const ObNewRow& right_row, ObExprCtx& expr_ctx, ObObj& result) const
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{
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int ret = OB_SUCCESS;
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int32_t cmp = 0;
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if (OB_UNLIKELY(left_row.get_count() != right_row.get_count())) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("right and left row is not equal", K(ret));
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} else {
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const ObIArray<ObExprCalcType>& cmp_types = result_type_.get_row_calc_cmp_types();
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for (int64_t i = 0; OB_SUCC(ret) && i < left_row.get_count(); ++i) {
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const ObObj& left_param = left_row.get_cell(i);
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const ObObj& right_param = right_row.get_cell(i);
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if (OB_FAIL(ObSubQueryRelationalExpr::compare_obj(
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expr_ctx, left_param, right_param, cmp_types.at(i), false, result))) {
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LOG_WARN("compare subquery obj failed", K(ret));
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} else if (OB_UNLIKELY(result.is_null())) {
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break;
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} else if (OB_FAIL(result.get_int32(cmp))) {
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LOG_WARN("get int value from result failed", K(result), K(ret));
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} else if (0 != cmp) {
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result.set_int32(cmp < 0);
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break;
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} else if (i == left_row.get_count() - 1) {
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result.set_int32(true);
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break;
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}
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}
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}
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return ret;
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}
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} // namespace sql
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} // namespace oceanbase
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