mustafasrepo commented on code in PR #9690:
URL: https://github.com/apache/arrow-datafusion/pull/9690#discussion_r1541175254
##########
datafusion/optimizer/src/optimize_projections.rs:
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@@ -1192,4 +1354,126 @@ mod tests {
\n TableScan: test projection=[a]";
assert_optimized_plan_equal(&plan, expected)
}
+
+ // Optimize Projections Rule, pushes down projection through users defined
logical plan node.
+ #[test]
+ fn test_user_defined_logical_plan_node() -> Result<()> {
Review Comment:
Sure. Added comment explaining the rationale.
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