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doris/fe
谢健 aaedcf34cf [enhancement](Nereids) refactor costModel framework (#17339)
refactor cost-model frameWork:
1. Use Cost class to encapsulate double cost
2. Use the `addChildCost` function to calculate the cost with children rather than add directly

Note we use the `Cost` class because we hope to customize the operator of adding a child host. Therefore, only when the cost would add the child Cost or be added by the parent  we use `Cost`. Otherwise, we use double such as `upperbound`
2023-03-09 13:58:44 +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