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https://issues.apache.org/jira/browse/IMPALA-15140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy updated IMPALA-15140:
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Description:
Parquet says DELTA_LENGTH_BYTE_ARRAY is preferred over PLAIN encoding for byte
arrays:
[https://github.com/apache/parquet-format/blob/master/Encodings.md#DELTALENGTH]
Latest Trino also switched to this encoding:
[https://github.com/trinodb/trino/commit/dc304f4a47c1b0d68d39557b6c6bbbd87ebb4743]
> Add write support for DELTA_LENGTH_BYTE_ARRAY Parquet encoding
> --------------------------------------------------------------
>
> Key: IMPALA-15140
> URL: https://issues.apache.org/jira/browse/IMPALA-15140
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend
> Reporter: Zoltán Borók-Nagy
> Priority: Major
>
> Parquet says DELTA_LENGTH_BYTE_ARRAY is preferred over PLAIN encoding for
> byte arrays:
> [https://github.com/apache/parquet-format/blob/master/Encodings.md#DELTALENGTH]
> Latest Trino also switched to this encoding:
> [https://github.com/trinodb/trino/commit/dc304f4a47c1b0d68d39557b6c6bbbd87ebb4743]
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