andygrove commented on code in PR #56:
URL: https://github.com/apache/datafusion-ray/pull/56#discussion_r1885772366
##########
src/query_stage.rs:
##########
@@ -99,14 +100,23 @@ impl QueryStage {
/// Get the input partition count. This is the same as the number of
concurrent tasks
/// when we schedule this query stage for execution
pub fn get_input_partition_count(&self) -> usize {
- if self.plan.children().is_empty() {
- // leaf node (file scan)
- self.plan.output_partitioning().partition_count()
- } else {
- self.plan.children()[0]
- .output_partitioning()
- .partition_count()
+ let mut output_partition_counts = HashSet::new();
Review Comment:
PR https://github.com/apache/datafusion-ray/pull/54 no longer looks at the
plan's children in this section of code, so perhaps this check (which is a good
check) should move somewhere else. I'd suggest adding it in `QueryStage::new`
and have it return `Result<Self>`.
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