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Posted to notifications@tsfile.apache.org by "ycycse (via GitHub)" <gi...@apache.org> on 2026/04/25 06:38:38 UTC

[PR] optimize the row-position read performance of TsFileDataFrame [tsfile]

ycycse opened a new pull request, #794:
URL: https://github.com/apache/tsfile/pull/794

   This PR optimizes Python `TsFileDataFrame` / `Timeseries` row-position reads.
   
   Before this change, single-series position reads used row-by-row `ResultSet.next()` iteration. This PR switches that path to native row-query Arrow batch reads and avoids timestamp materialization when the caller only needs values.
   
   TsFile direct reads improve from `143.2` to `536.2 samples/s`, about `3.7x` faster after this pr.


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