xudong963 commented on PR #15289:
URL: https://github.com/apache/datafusion/pull/15289#issuecomment-2732041851
> Instead of either "try for all" or "skip at all", isn't better to only go
over the columns which has statistics.is_some() ?
Do you mean the following?
```rust
// Instead of a single boolean flag
let columns_with_statistics: Vec<_> = row_group_meta.columns().iter()
.enumerate()
.filter_map(|(idx, column)| {
if column.statistics().is_some() {
Some(idx)
} else {
None
}
})
.collect();
// Then later, when processing column statistics
for (col_idx, field) in table_schema.fields().iter().enumerate() {
if columns_with_statistics.contains(&col_idx) {
// Process only columns that have statistics
// Use the statistics converter and update min/max accumulators
}
}
```
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