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Copy pathob_expr_array_union.h
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86 lines (81 loc) · 2.99 KB
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/*
* Copyright (c) 2025 OceanBase.
*
* 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.
*/
#ifndef OCEANBASE_SQL_OB_EXPR_ARRAY_UNION
#define OCEANBASE_SQL_OB_EXPR_ARRAY_UNION
#include "sql/engine/expr/ob_expr_operator.h"
#include "lib/udt/ob_array_type.h"
namespace oceanbase
{
namespace sql
{
class ObExprArraySetOperation : public ObFuncExprOperator
{
public:
enum SetOperation {
UNIONINZE = 0,
INTERSECT = 1,
EXCEPT = 2,
};
explicit ObExprArraySetOperation(common::ObIAllocator &alloc,
ObExprOperatorType type,
const char *name, int32_t param_num,
int32_t dimension);
virtual ~ObExprArraySetOperation();
virtual int calc_result_type2(ObExprResType &type,
ObExprResType &type1,
ObExprResType &type2,
common::ObExprTypeCtx &type_ctx) const override;
virtual int calc_result_typeN(ObExprResType& type,
ObExprResType* types,
int64_t param_num,
common::ObExprTypeCtx& type_ctx) const override;
static int eval_array_set_operation(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res, SetOperation operation);
static int eval_array_set_operation_batch(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const int64_t batch_size,
SetOperation operation);
static int eval_array_set_operation_vector(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound,
SetOperation operation);
private:
DISALLOW_COPY_AND_ASSIGN(ObExprArraySetOperation);
};
class ObExprArrayUnion : public ObExprArraySetOperation
{
public:
explicit ObExprArrayUnion(common::ObIAllocator &alloc);
virtual ~ObExprArrayUnion();
static int eval_array_union(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
static int eval_array_union_batch(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const int64_t batch_size);
static int eval_array_union_vector(const ObExpr &expr,
ObEvalCtx &ctx,
const ObBitVector &skip,
const EvalBound &bound);
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx,
const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
private:
DISALLOW_COPY_AND_ASSIGN(ObExprArrayUnion);
};
} // sql
} // oceanbase
#endif //OCEANBASE_SQL_OB_EXPR_ARRAY_UNION