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Posted to dev@hive.apache.org by "Sergey Shelukhin (JIRA)" <ji...@apache.org> on 2017/10/05 20:43:00 UTC

[jira] [Created] (HIVE-17713) disallow adding/modifying columns for Avro/CSV/etc. SerDes

Sergey Shelukhin created HIVE-17713:
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             Summary: disallow adding/modifying columns for Avro/CSV/etc. SerDes
                 Key: HIVE-17713
                 URL: https://issues.apache.org/jira/browse/HIVE-17713
             Project: Hive
          Issue Type: Bug
            Reporter: Sergey Shelukhin


This is kind of a followup from HIVE-11985
When a SerDe uses an external schema (either embedded, or via a file link), it's not using the information stored in metastore for the columns. So, if the users modify table schema via add column and other such commands it won't have effect on serde, since it's using the external schema; leading to confusion and bugs. We should not allow such a modification for SerDes not in hive.serdes.using.metastore.for.schema 



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