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Posted to issues@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2017/10/18 20:36:00 UTC

[jira] [Created] (IMPALA-6076) Add deprecation warning for BIT_PACKED encoding.

Tim Armstrong created IMPALA-6076:
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             Summary: Add deprecation warning for BIT_PACKED encoding.
                 Key: IMPALA-6076
                 URL: https://issues.apache.org/jira/browse/IMPALA-6076
             Project: IMPALA
          Issue Type: Improvement
          Components: Backend
    Affects Versions: Impala 2.10.0
            Reporter: Tim Armstrong


Per IMPALA-3006, the BIT_PACKED decoding in the parquet scanner is deprecated and the implementation is actually incorrect. We should add a warning with the intent of removing the support in a later release.

Note that because of IMPALA-5636 Impala-generated Parquet files may claim to use BIT_PACKED encoding when they don't, so we should really only issue the warning if the encoding is used in a data page.



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