| Class | Description |
|---|---|
| AccumulatorOptimizer |
A visitor to optimize plans that determines if a vertex plan can run in
accumulative mode.
|
| CombinerOptimizer |
This class goes through the physical plan are replaces GlobalRearrange with ReduceBy
where there are algebraic operations.
|
| JoinGroupOptimizerSpark |
Collapse LocalRearrange,GlobalRearrange,Package to POJoinGroupSpark to reduce unnecessary
map operations to optimize join/group.
|
| MultiQueryOptimizerSpark |
MultiQueryOptimizer for spark
|
| NoopFilterRemover |
For historical reasons splits will always produce filters that pass
everything through unchanged.
|
| ParallelismSetter | |
| SecondaryKeyOptimizerSpark |
Secondary key sort optimization for spark mode
|
| SparkSecondaryKeyOptimizerUtil |
Copyright © 2007-2017 The Apache Software Foundation