[I] Push limit down into ParquetRecordBatchStream [arrow-rs-object-store]

["thinkharderdev (via GitHub)" <gi...@apache.org>]

thinkharderdev opened a new issue, #196:
URL: https://github.com/apache/arrow-rs-object-store/issues/196

   **Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
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   Currently, `ParquetRecordBatchStream` can read only data pages required for a given `RowSelection` (if there is an `OffsetIndex`). If we can have limit on the number of rows we want to read there is not really a good way to push that down as an `ArrowPredicate` though 
   
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   `ParquetRecordBatchStream` takes a `limit: Option<usize>` argument. If provided, after evaluating the `RowFilter` the resulting `RowSelection` is truncated to the provided limit (eg after selecting `limit` rows, skip everything else). Then for any remaining projected columns we only need to read enough data pages to satisfy the limit. 
   
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   Do nothing
   
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