Aeden
Reputation: 305
KeyBy vs GroupBy in Apache Flink
What are the similarities and differences of KeyBy and GroupBy in Flink? If one is using the Table/SQL API in a Table only program is GroupBy equivalent to KeyBy?
Upvotes: 1
Views: 1887
Answers (2)
David Anderson
Reputation: 43499
The streaming GroupBy in the Table/SQL API is the keyBy from the DataStream API.
Upvotes: 8
Murtaza Zaveri
Reputation: 49
KeyBy is used for Streams data(incase of keyed Streams) and GroupBy is used for Data set API for Batch Processing.
Upvotes: 1
Related Questions
- How GROUP BY and OVER WINDOW differ in FlinkSQL?
- Keyby data distribution in Apache Flink, Logical or Physical Operator?
- Apache flink keyby function with field expression
- Why do we need multiple keyed by operators in flink?
- Flink keyBy grouping issue
- Flink SQL: Repeating grouping keys in result of GROUP BY query
- Group records by key and collect into a ListBuffer in Flink Streaming
- Apache Flink: What is the difference of groupBy and partitioning in the DataSet API?
- Usecases for GroupCombine in flink
- Flink DataSet API: Is GroupBy is not working correctly?