alamb commented on code in PR #9190:
URL: https://github.com/apache/arrow-datafusion/pull/9190#discussion_r1485193253
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datafusion/core/src/datasource/memory.rs:
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@@ -58,6 +60,9 @@ pub struct MemTable {
pub(crate) batches: Vec<PartitionData>,
constraints: Constraints,
column_defaults: HashMap<String, Expr>,
+ /// Optional pre-known sort order(s). Must be `SortExpr`s.
Review Comment:
I needed this feature to write a test that ran with sorted aggregates
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