13#include "sql/expr/aggregate_hash_table.h" 
   14#include "sql/operator/physical_operator.h" 
   29  RC open(
Trx *trx)
 override { 
return RC::UNIMPLEMENTED; }
 
   30  RC next(
Chunk &chunk)
 override { 
return RC::UNIMPLEMENTED; }
 
   31  RC close()
 override { 
return RC::UNIMPLEMENTED; }
 
A Chunk represents a set of columns.
Definition: chunk.h:23
 
Group By 物理算子(vectorized)
Definition: group_by_vec_physical_operator.h:21
 
与LogicalOperator对应,物理算子描述执行计划将如何执行
Definition: physical_operator.h:63
 
事务接口
Definition: trx.h:141
 
PhysicalOperatorType
物理算子类型
Definition: physical_operator.h:36