Reynold Xin created SPARK-21273:
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Summary: Decouple stats propagation from logical plan
Key: SPARK-21273
URL: https://issues.apache.org/jira/browse/SPARK-21273
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.2.0
Reporter: Reynold Xin
Assignee: Reynold Xin
We currently implement statistics propagation directly in logical plan. Given
we already have two different implementations, it'd make sense to actually
decouple the two and add stats propagation using mixin.
This can also be a powerful pattern in the future to add additional properties
(e.g. constraints).
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