Dandandan commented on a change in pull request #8944:
URL: https://github.com/apache/arrow/pull/8944#discussion_r544614359
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File path: rust/datafusion/src/datasource/parquet.rs
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@@ -41,10 +41,25 @@ impl ParquetTable {
pub fn try_new(path: &str) -> Result<Self> {
let parquet_exec = ParquetExec::try_new(path, None, 0)?;
let schema = parquet_exec.schema();
+
+ let metadata = parquet_exec.metadata();
+ let (num_rows, total_byte_size) = metadata.row_groups().iter().fold(
Review comment:
I think this would be better as two "loops", than it can use `.sum()` as
well instead of fold?
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