| 限定符和类型 | 类和说明 |
|---|---|
class |
AbstractProcessStreamOperator<OUT>
AbstractProcessStreamOperator is a base class for stream operators without key.
|
| 限定符和类型 | 类和说明 |
|---|---|
class |
HashJoinOperator
Hash join base operator.
|
class |
SortMergeJoinOperator
An implementation that realizes the joining through a sort-merge join strategy.
1.In most cases, its performance is weaker than HashJoin.
2.It is more stable than HashJoin, and most of the data can be sorted stably.
3.SortMergeJoin should be the best choice if sort can be omitted in the case of multi-level join
cascade with the same key.
|
| 限定符和类型 | 类和说明 |
|---|---|
class |
BufferDataOverWindowOperator
the operator for OVER window need cache data by ResettableExternalBuffer for
OverWindowFrame. |
class |
NonBufferOverWindowOperator
The operator for OVER window don't need cache data.
|
| 限定符和类型 | 类和说明 |
|---|---|
class |
LimitOperator
Operator for batch limit.
|
class |
RankOperator
Rank operator to compute top N.
|
class |
SortLimitOperator
Operator for batch sort limit.
|
class |
SortOperator
Operator for batch sort.
|
class |
StreamSortOperator
Operator for stream sort.
|
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