liukun4515 commented on code in PR #4465:
URL: https://github.com/apache/arrow-datafusion/pull/4465#discussion_r1104083184
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datafusion/optimizer/src/optimizer.rs:
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@@ -216,23 +216,24 @@ impl Optimizer {
// subqueries to joins
Arc::new(SimplifyExpressions::new()),
Arc::new(RewriteDisjunctivePredicate::new()),
+ Arc::new(EliminateLimit::new()),
Arc::new(EliminateFilter::new()),
+ // Filters can't be pushed down past Limits, we should do
PushDownFilter after PushDownLimit
Review Comment:
are there dependencies between some optimization rules?
I don't why we use the same rule twice, such as `PushDownLimit`
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