Jefffrey commented on code in PR #11047:
URL: https://github.com/apache/arrow-rs/pull/11047#discussion_r4034443794
##########
parquet/src/arrow/arrow_reader/mod.rs:
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@@ -1127,9 +1127,26 @@ impl ArrowReaderMetadata {
)));
}
+ // Virtual columns are appended to `field_levels` and counted in the
length check
+ // above, so the reported schema has to carry them too.
+ let schema = if virtual_columns.is_empty() {
+ supplied_schema
+ } else {
+ let fields = supplied_schema
Review Comment:
i notice here we construct via `field_levels`:
https://github.com/apache/arrow-rs/blob/0a5979560ac67135134c3618519b9b7384edf4d2/parquet/src/arrow/schema/mod.rs#L75-L99
- line 97
is this equivalent?
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