doris

Files

谢健 97bf07fe26 [enhancement](Nereids) add new distributed cost model (#17556 )

Add a new distributed cost model in Nereids. The new cost model models the cost of the pipeline execute engine by dividing cost into run and start costs. They are:
* START COST: the cost from starting to emitting the fist tuple
* RUN COST: the cost from emitting the first tuple to emitting all tuples

For the parent operator and child operator, we assume the timeline of them is:
  ```
  child start ---> child run --------------------> finish
             |---> parent start ---> parent run -> finish
  ```

Therefore, in the parallel model, we can get:
  ```
  start_cost(parent) = start_cost(child) + start_cost(parent)
  run_cost(parent) = max(run_cost(child), start_cost(parent) + run_cost(parent))
  ```

2023-03-15 11:22:31 +08:00

check/checkstyle

[improvement](dry-run)(tvf) support csv schema in tvf and add "dry_run_query" variable (#16983 )

2023-03-02 16:51:27 +08:00

fe-common

[vectorized](function) support array_map function (#17581 )

2023-03-15 10:51:29 +08:00

fe-core

[enhancement](Nereids) add new distributed cost model (#17556 )

2023-03-15 11:22:31 +08:00

hive-udf

[chore](maven) Prefer protoc in thirdparty to the one in maven artifacts (#17596 )

2023-03-09 16:21:38 +08:00

java-udf

[Chore](third-party) upgrade thrift from 0.13 to 0.16 (#17202 )

2023-03-10 11:33:16 +08:00

spark-dpp

[fix](log) use logger to replace printStackTrace() (#17382 )

2023-03-03 14:51:30 +08:00

pom.xml

[Chore](third-party) upgrade thrift from 0.13 to 0.16 (#17202 )

2023-03-10 11:33:16 +08:00

README

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README

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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