Ted-Jiang commented on code in PR #4105:
URL: https://github.com/apache/arrow-datafusion/pull/4105#discussion_r1014052195
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datafusion/core/src/physical_plan/file_format/parquet.rs:
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@@ -449,7 +449,7 @@ impl FileOpener for ParquetOpener {
// page index pruning: if all data on individual pages can
// be ruled using page metadata, rows from other columns
// with that range can be skipped as well
- if let Some(row_selection) = enable_page_index
+ if let Some(row_selection) = (enable_page_index &&
!row_groups.is_empty())
Review Comment:
when all rowGroups are pruned by rg_metadata(min max), we do this skip fast
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