seddonm1 commented on a change in pull request #8944:
URL: https://github.com/apache/arrow/pull/8944#discussion_r544646610
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File path: rust/datafusion/src/datasource/parquet.rs
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@@ -41,10 +41,26 @@ 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 = metadata
+ .row_groups()
+ .iter()
+ .map(|rg| rg.num_rows() as usize)
+ .sum();
+ let total_byte_size = metadata
+ .row_groups()
+ .iter()
+ .map(|rg| rg.total_byte_size() as usize)
Review comment:
Thanks. I have updated the PR. I should have recognised this from Scala.
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