Reynold Xin created SPARK-20302:
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Summary: Optimize cast when from and to types are structurally the
same
Key: SPARK-20302
URL: https://issues.apache.org/jira/browse/SPARK-20302
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.1.0
Reporter: Reynold Xin
Assignee: Reynold Xin
When we perform a cast expression and the from and to types are structurally
the same (having the same structure but different field names), we should be
able to skip the actual cast.
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