gene-bordegaray commented on code in PR #23184:
URL: https://github.com/apache/datafusion/pull/23184#discussion_r3535712938
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datafusion/physical-optimizer/src/ensure_requirements/enforce_distribution.rs:
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@@ -1041,6 +1045,92 @@ fn get_repartition_requirement_status(
.collect())
}
+/// Enforce cross-child distribution relationships after each child has already
+/// satisfied its own distribution requirement.
+///
+/// If the candidate children are still not co-partitioned, this adds the
+/// conservative key-based repartitions needed to make partition indexes line
up.
+#[expect(
+ deprecated,
+ reason = "HashPartitioned is accepted during the KeyPartitioned migration"
+)]
+fn enforce_distribution_relationships(
+ plan_name: &str,
+ input_distributions: &RequiredInputDistributions,
+ children: &mut [(
+ DistributionContext,
+ Option<OrderingRequirements>,
+ bool,
+ Distribution,
+ )],
+ target_partitions: usize,
Review Comment:
I can pull it into some type of struct, its really trying to model
children's dtribution state
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