[FLINK-35981][transform] Transform rule support referencing one column more than once #3515
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yuxiqian
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...rc/test/java/org/apache/flink/cdc/runtime/operators/transform/TransformDataOperatorTest.java
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# Conflicts: # flink-cdc-runtime/src/main/java/org/apache/flink/cdc/runtime/operators/transform/ProjectionColumnProcessor.java # flink-cdc-runtime/src/main/java/org/apache/flink/cdc/runtime/operators/transform/TransformFilterProcessor.java # flink-cdc-runtime/src/test/java/org/apache/flink/cdc/runtime/operators/transform/PostTransformOperatorTest.java
leonardBang
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qiaozongmi
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Sep 23, 2024
…more than once This closes apache#3515.
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Currently, transform rule (projection / filtering) doesn't support referencing one column more than once, which means if we write such a projection rule:
transform:
projection: *, age * age AS age_square
filter: age < 18 OR age > 60