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Posted to dev@parquet.apache.org by "Johannes Zillmann (JIRA)" <ji...@apache.org> on 2016/05/23 12:38:12 UTC

[jira] [Created] (PARQUET-623) DeltaByteArrayReader has incorrect skip behaviour

Johannes Zillmann created PARQUET-623:
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             Summary: DeltaByteArrayReader has incorrect skip behaviour
                 Key: PARQUET-623
                 URL: https://issues.apache.org/jira/browse/PARQUET-623
             Project: Parquet
          Issue Type: Bug
            Reporter: Johannes Zillmann


When reading delta encoded columns (v2 API) and skipping values the read fails (with differing exceptions). This is because the reader needs the last value but the skip logic is not managing this.

A modified DeltaByteArrayReader which calls readBytes() on skip() does fix the reading. Not sure if there is a more efficient solution possible then simply invoking readBytes().



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