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Posted to issues-all@impala.apache.org by "Grant Henke (Jira)" <ji...@apache.org> on 2020/06/01 21:39:00 UTC

[jira] [Created] (IMPALA-9810) Support Kudu's columnar scan format

Grant Henke created IMPALA-9810:
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             Summary: Support Kudu's columnar scan format
                 Key: IMPALA-9810
                 URL: https://issues.apache.org/jira/browse/IMPALA-9810
             Project: IMPALA
          Issue Type: Improvement
            Reporter: Grant Henke


Starting in Kudu 1.12 Kudu supports a columnar wire format that is Apache Arrow compatible. This format is significantly more efficient and faster than the row based format. Impala should support the columnar format, optimally operating on the arrow/columnar format natively. 

Of course using the columnar format natively is the best end result, but it might be beneficial enough to translate to the row based format client side. The Java client recently added a patch for this https://gerrit.cloudera.org/#/c/15983/ and Kudu could add similar C++ client functionality if needed.



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