AssHero commented on code in PR #2750:
URL: https://github.com/apache/arrow-datafusion/pull/2750#discussion_r902102694
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datafusion/sql/src/planner.rs:
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@@ -2584,6 +2587,230 @@ fn extract_join_keys(
}
}
+/// Recursively traversese expr, if expr returns false when
+/// any inputs are null, treats columns of both sides as nonnullable columns.
+///
+/// For and/or expr, extracts from all sub exprs and merges the columns.
Review Comment:
> I guess here is
For And and Or exprs, we need to extract columns from all sub exprs.
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