liukun4515 commented on code in PR #3636:
URL: https://github.com/apache/arrow-datafusion/pull/3636#discussion_r982019867
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datafusion/core/src/execution/context.rs:
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@@ -1466,14 +1466,15 @@ impl SessionState {
}
let mut rules: Vec<Arc<dyn OptimizerRule + Sync + Send>> = vec![
- // Simplify expressions first to maximize the chance
- // of applying other optimizations
- Arc::new(SimplifyExpressions::new()),
- Arc::new(PreCastLitInComparisonExpressions::new()),
+ // TODO
https://github.com/apache/arrow-datafusion/issues/3557#issuecomment-1259227250
+ // type coercion can't handle the subquery plan, should rewrite
subquery first
Review Comment:
I know less about the subquery.
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