[GitHub] [iceberg] Fokko commented on issue #5801: Read iceberg table into a PyArrow Dataset

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

Fokko commented on issue #5801:
URL: https://github.com/apache/iceberg/issues/5801#issuecomment-1454632236

   @djouallah you are right on that. 
   
   Currently, it is still a two-stage rocket, you first need to prune the data using the PyIceberg `row_filter`:
   
   ```python
   catalog = load_catalog('default')
   tbl = catalog.load_table('nyc.taxis')
   
   sc = tbl.scan(row_filter=And(
       GreaterThanOrEqual("tpep_pickup_datetime", "2022-01-01T00:00:00.000000+00:00")
       LessThan("tpep_pickup_datetime", "2022-02-01T00:00:00.000000+00:00")
   ).to_arrow() # Same for .to_duckdb()
   ```
   
   This will load all the data from January. If you don't pass in a `row_filter`, it will pull in the current version of the table. Right now, it won't push the predicate down to the Iceberg layer, unfortunately. This is something that we're working on but requires tighter integration with PyArrow and DuckDB.


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