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[#FLINK-33596][Connectors/Hive]] Fold expression before transfer function to RexNode.#23759

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yunfan123 wants to merge 1 commit intoapache:masterfrom
yunfan123:fold-expr-before-transfer
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[#FLINK-33596][Connectors/Hive]] Fold expression before transfer function to RexNode.#23759
yunfan123 wants to merge 1 commit intoapache:masterfrom
yunfan123:fold-expr-before-transfer

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@yunfan123
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What is the purpose of the change

Fold expression before transfer function to RexNode.
Hive will fold expression in optimization stage.
But flink-hive-parser use flink optimization.
And flink can't know some hive function can be constant value.

Some hive code reference:

https://github.com/apache/hive/blob/rel/release-2.3.9/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveRexExecutorImpl.java#L62

https://github.com/apache/hive/blob/rel/release-2.3.9/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L1776

https://github.com/apache/hive/blob/rel/release-2.3.9/ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java#L1069

Brief change log

Try to transfer to constant before function transfer to rexNode.

Verifying this change

This change is verified by added test

Does this pull request potentially affect one of the following parts:

  • Dependencies (does it add or upgrade a dependency): (no)
  • The public API, i.e., is any changed class annotated with @Public(Evolving): (no)
  • The serializers: (no)
  • The runtime per-record code paths (performance sensitive): (no)
  • Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
  • The S3 file system connector: (no)

Documentation

  • Does this pull request introduce a new feature? (no)
  • If yes, how is the feature documented? (not applicable)

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flinkbot commented Nov 20, 2023

CI report:

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  • @flinkbot run azure re-run the last Azure build

@yunfan123 yunfan123 force-pushed the fold-expr-before-transfer branch from f4f8a99 to a76a034 Compare November 28, 2023 07:53
@yunfan123
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It has replaced by apache/flink-connector-hive#15

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2 participants