smaheshwar-pltr commented on PR #14373:
URL: https://github.com/apache/iceberg/pull/14373#issuecomment-3614944636

   > Can Iceberg table metadata be used to prune these expressions when passed 
down? We don't want to add expressions that can't be used. Filtering individual 
rows or values is for engines.
   
   Thanks for taking a look, @rdblue.
   
   I believe so - Spark filters like `F.col('url').endswith('fr')` / 
`F.col('url').contains('fr')` when your Iceberg table is partitioned on a `url` 
column are surprisingly slow, because Iceberg partitioning isn't used to filter 
out unnecessary files during planning, prior to this PR. WDYT?


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