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Skip re-pruning based on partition values and file level stats if there are no dynamic filters #16424

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Skip re-pruning based on partition values and file level stats if there are no dynamic filters #16424

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49014ad
Prune files as we iterate over streams, short circuit if there are no…
adriangb Jun 16, 2025
ab12133
fmt
adriangb Jun 16, 2025
c1a314a
better comment
adriangb Jun 16, 2025
150cd28
clippy
adriangb Jun 16, 2025
ddf1793
add test
adriangb Jun 16, 2025
8f43808
fix import
adriangb Jun 16, 2025
1eba818
fmt
adriangb Jun 16, 2025
116100b
refactor for clarity
adriangb Jun 17, 2025
d0d28ec
wrap
adriangb Jun 17, 2025
d885b26
add generation checks
adriangb Jun 17, 2025
c6cfbec
fix
adriangb Jun 17, 2025
d32ab54
don't prune on each batch
adriangb Jun 19, 2025
fb39f0c
clippy
adriangb Jun 19, 2025
b22dc2c
Update datafusion/datasource-parquet/src/opener.rs
adriangb Jun 20, 2025
4ebee3c
fix tests
adriangb Jun 23, 2025
e3d3302
fix comments
adriangb Jun 23, 2025
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4 changes: 2 additions & 2 deletions datafusion/core/tests/parquet/row_group_pruning.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -421,7 +421,7 @@ macro_rules! int_tests {
.with_query(&format!("SELECT * FROM t where i{} in (100)", $bits))
.with_expected_errors(Some(0))
.with_matched_by_stats(Some(0))
.with_pruned_by_stats(Some(0))
.with_pruned_by_stats(Some(4))
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This is basically reverting the changes made in #16447 because we are now not doing file level pruning if there are only static filters.

@alamb maybe this is an argument to still do the file level pruning even if there are no dynamic filters. I guess this pruning is not happening anywhere else. One could argue it should happen right after statistics are collected, in the TableProvider, but that doesn't seem to be the case and maybe it's better to just let it happen in ParquetOpener (or we could move this pruning up to the DataSourceExec or something so it works for all sources) so that TableProvider complexity is kept to a minimum.

.with_matched_by_bloom_filter(Some(0))
.with_pruned_by_bloom_filter(Some(0))
.with_expected_rows(0)
Expand Down Expand Up @@ -1316,7 +1316,7 @@ async fn test_row_group_with_null_values() {
.with_query("SELECT * FROM t WHERE \"i32\" > 7")
.with_expected_errors(Some(0))
.with_matched_by_stats(Some(0))
.with_pruned_by_stats(Some(0))
.with_pruned_by_stats(Some(3))
.with_expected_rows(0)
.with_matched_by_bloom_filter(Some(0))
.with_pruned_by_bloom_filter(Some(0))
Expand Down
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