[jira] [Created] (IMPALA-13738) Extract common code of IcebergTable and HdfsTable to a helper class

["Zoltán Borók-Nagy (Jira)" <ji...@apache.org>]

Zoltán Borók-Nagy created IMPALA-13738:
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             Summary: Extract common code of IcebergTable and HdfsTable to a helper class
                 Key: IMPALA-13738
                 URL: https://issues.apache.org/jira/browse/IMPALA-13738
             Project: IMPALA
          Issue Type: Improvement
          Components: Catalog
            Reporter: Zoltán Borók-Nagy
            Assignee: Noemi Pap-Takacs


Currently, IcebergTable has an underlying HdfsTable that gives us headaches from time to time.

We should identify the common data members and logic between IcebergTable and HdfsTable and put them into a helper class and both IcebergTable and HdfsTable would use that class internally.

HdfsTable and IcebergTable have a common base interface FeFsTable, but we cannot put useful code there.

OTOH, HdfsTable and IcebergTable both extend Table, so as an alternative option (to composition), it might be possible to put common code into a newly introduced common base class:
{noformat}
        Table
          ^
          |
       FsTable (NEW)
          ^
         / \
        /   \
HdfsTable  IcebergTable{noformat}



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