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Requires PARQUET-1324 and probably quite a bit of extra work
Properly implementing this will require dictionary normalization across row groups. When reading a new row group, a fast path that compares the current dictionary with the prior dictionary should be used. This also needs to handle the case where a column chunk "fell back" to PLAIN encoding mid-stream
Requires PARQUET-1324 and probably quite a bit of extra work
Properly implementing this will require dictionary normalization across row groups. When reading a new row group, a fast path that compares the current dictionary with the prior dictionary should be used. This also needs to handle the case where a column chunk "fell back" to PLAIN encoding mid-stream
Reporter: Wes McKinney / @wesm
Assignee: Wes McKinney / @wesm
Related issues:
PRs and other links:
Note: This issue was originally created as ARROW-3325. Please see the migration documentation for further details.
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