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Posted to issues@impala.apache.org by "Csaba Ringhofer (Jira)" <ji...@apache.org> on 2019/10/17 17:53:00 UTC

[jira] [Created] (IMPALA-9064) Inserts to ACID tables should always increase writeId

Csaba Ringhofer created IMPALA-9064:
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             Summary: Inserts to ACID tables should always increase writeId
                 Key: IMPALA-9064
                 URL: https://issues.apache.org/jira/browse/IMPALA-9064
             Project: IMPALA
          Issue Type: Bug
          Components: Frontend
    Affects Versions: Impala 3.3.0
            Reporter: Csaba Ringhofer


We kind of assumed that the table's writeId  is increased during allocateWriteId or commit, so we don't have to set it with a separate API call during INSERT. https://gerrit.cloudera.org/#/c/14037/ sets it in some specific cases (if STATS_ACCURATE is set, because in this case we call alter_table/partitions to remove), but it is generally not touched.

I am not sure that it is Impala's duty to set it, it would be probably better if HMS would do it by itself.



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