xudong963 commented on a change in pull request #1566:
URL: https://github.com/apache/arrow-datafusion/pull/1566#discussion_r786099463
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File path: datafusion/src/sql/planner.rs
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@@ -731,20 +732,33 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
}
}
if join_keys.is_empty() {
- left =
-
LogicalPlanBuilder::from(left).cross_join(right)?.build()?;
+ /// check [1..idx] if contains current plan to avoid
infinite loop
Review comment:
```suggestion
// check [1..idx] if contains current plan to avoid
infinite loop
```
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