waruto210 commented on code in PR #12471:
URL: https://github.com/apache/datafusion/pull/12471#discussion_r1764332240
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datafusion/core/src/datasource/listing/table.rs:
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@@ -817,6 +817,20 @@ impl TableProvider for ListingTable {
.map(|col| Ok(self.table_schema.field_with_name(&col.0)?.clone()))
.collect::<Result<Vec<_>>>()?;
+ // If the filters can be resolved using only partition cols, there is
no need to
+ // pushdown it to TableScan, otherwise, `unhandled` pruning predicates
will be generated
+ let table_partition_col_names = table_partition_cols
Review Comment:
I conducted some tests and discovered that filters that can be resolved
using only `table_partition_cols` generate `unhandled` predicates when creating
`PruningPredicate`, which causes `statistics()` to be unable to generate exact
stats in some cases.
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