Weijun-H commented on code in PR #15783:
URL: https://github.com/apache/datafusion/pull/15783#discussion_r2052164212
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datafusion/physical-plan/src/joins/hash_join.rs:
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@@ -86,6 +86,9 @@ use datafusion_physical_expr_common::physical_expr::fmt_sql;
use futures::{ready, Stream, StreamExt, TryStreamExt};
use parking_lot::Mutex;
+const HASH_JOIN_SEED: RandomState =
Review Comment:
maybe left some comments here to explain this change
```suggestion
/// Hard-coded seed to ensure hash values from the hash join differ from
`RepartitionExec`, avoiding collisions.
const HASH_JOIN_SEED: RandomState =
```
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