Files
doris/fe
mch_ucchi d96e31c4d7 [opt](Nereids) not push down global limit to avoid early gather (#21891)
the global limit will create a gather action, and all the data will be calculated in one instance. If we push down the global limit, the node run after the limit node will run slowly.
We fix it by push down only local limit.

a join plan tree before fixing:

```
LogicalLimit(global)
    LogicalLimit(local)
        Plan()
            LogicalLimit(global)
                LogicalLimit(local)
                    LogicalJoin
                        LogicalLimit(global)
                            LogicalLimit(local)
                                Plan()
                        LogicalLimit(global)
                            LogicalLimit(local)
                                Plan()    

after fixing:
LogicalLimit(global)
    LogicalLimit(local)      
        Plan()
            LogicalLimit(local)
                LogicalJoin
                    LogicalLimit(local)
                        Plan()
                    LogicalLimit(local)
                        Plan()
```
2023-07-25 14:45:20 +08:00
..

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# fe-common

This module is used to store some common classes of other modules.

# spark-dpp

This module is Spark DPP program, used for Spark Load function.
Depends: fe-common

# fe-core

This module is the main process module of FE.
Depends: fe-common, spark-dpp