thinkerou created FLINK-9400:
--------------------------------
Summary: change import statement for flink-scala
Key: FLINK-9400
URL:
https://issues.apache.org/jira/browse/FLINK-9400 Project: Flink
Issue Type: Improvement
Components: Scala API
Affects Versions: 1.4.1
Reporter: thinkerou
Fix For: 1.6.0
At `flink-scala` project have the follow import statement:
```scala
import org.apache.flink.api.common.operators.Keys
import Keys.ExpressionKeys
```
So I want to commit one pull request to fix it.
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