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oceanbase-admin
2021-05-31 22:56:52 +08:00
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src/sql/engine/expr/ob_iter_expr_range_param.cpp Normal file
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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX SQL_ENG
#include "sql/engine/expr/ob_iter_expr_range_param.h"
#include "sql/engine/ob_exec_context.h"
namespace oceanbase {
using namespace common;
namespace sql {
OB_SERIALIZE_MEMBER((ObIterExprRangeParam, ObIterExprOperator), start_index_, end_index_);
int ObIterExprRangeParam::get_next_row(ObIterExprCtx& expr_ctx, const common::ObNewRow*& result) const
{
int ret = OB_SUCCESS;
int64_t cur_cell_idx = 0;
ObNewRow* cur_row = expr_ctx.get_cur_row();
ObPhysicalPlanCtx* plan_ctx = expr_ctx.get_exec_context().get_physical_plan_ctx();
if (OB_ISNULL(cur_row) || OB_ISNULL(plan_ctx)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("current row is null", K(ret), K(cur_row), K(plan_ctx));
}
for (int64_t i = start_index_; OB_SUCC(ret) && i <= end_index_; ++i) {
if (OB_UNLIKELY(i < 0) || OB_UNLIKELY(i >= plan_ctx->get_param_store().count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN(
"invalid param index", K(ret), K(i), K_(start_index), K_(end_index), K(plan_ctx->get_param_store().count()));
} else if (OB_UNLIKELY(cur_cell_idx >= cur_row->get_count())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("current cell index is invalid", K(ret), K(cur_cell_idx), K(cur_row->get_count()));
} else {
cur_row->get_cell(cur_cell_idx++) = plan_ctx->get_param_store().at(i);
}
}
if (OB_SUCC(ret)) {
result = cur_row;
}
return ret;
}
} // namespace sql
} // namespace oceanbase