Shixiong Zhu created SPARK-19859:
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Summary: The new watermark should override the old one
Key: SPARK-19859
URL: https://issues.apache.org/jira/browse/SPARK-19859
Project: Spark
Issue Type: Bug
Components: Structured Streaming
Affects Versions: 2.1.0
Reporter: Shixiong Zhu
Assignee: Shixiong Zhu
The new watermark should override the old one. Otherwise, we just pick up the
first column which has a watermark, it may be unexpected.
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