Liu Liu created FLINK-40420:
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Summary: Add set operations to DataFrame API
Key: FLINK-40420
URL: https://issues.apache.org/jira/browse/FLINK-40420
Project: Flink
Issue Type: Sub-task
Components: API / Python
Reporter: Liu Liu
Add relational set operations to DataFrame:
{{}}
{code:java}
def union(self, other: DataFrame) -> DataFrame
def union_all(self, other: DataFrame) -> DataFrame
def intersect(self, other: DataFrame) -> DataFrame
def intersect_all(self, other: DataFrame) -> DataFrame
def minus(self, other: DataFrame) -> DataFrame
def minus_all(self, other: DataFrame) -> DataFrame {code}
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