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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2016/01/20 23:08:39 UTC

[jira] [Created] (SPARK-12939) migrate encoder resolution to Analyzer

Wenchen Fan created SPARK-12939:
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             Summary: migrate encoder resolution to Analyzer
                 Key: SPARK-12939
                 URL: https://issues.apache.org/jira/browse/SPARK-12939
             Project: Spark
          Issue Type: Bug
          Components: SQL
            Reporter: Wenchen Fan


in https://github.com/apache/spark/pull/10747, we decided to use expressions instead of encoders in query plans, to make the dataset easier to optimize and make encoder resolution less hacky.

However, that PR didn't finish the migration completely and cause some regressions which are hidden due to the lack of end-to-end test.
We should fix it by completing the migration and add end-to-end test for it



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