peter-toth commented on issue #23802: [SPARK-26893][SQL] Allow partition pruning with subquery filters on file source URL: https://github.com/apache/spark/pull/23802#issuecomment-465548596 > > shall we turn subquery filter into normal filter before calling `listFiles(partitionFilters, dataFilters)`? Then we can even prune the partitions at the metastore side. > > Sorry, I don't get this. Can you please elaborate on it? Where they should be turned to normal filters? I might be wrong but `PruneFileSourcePartitions` already filters at the metastore side (and it can't use subquery filters there) so does it make sense to convert subquery filters to normal filters before calling `listFiles(partitionFilters, dataFilters)`?
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