Github user huaxingao commented on the issue: https://github.com/apache/spark/pull/19256 Thanks @gatorsmile Does the following logic look good to you? ``` if(any dialect's isCascadingTruncateTable returns true) return Some(true) else if (any dialect's isCascadingTruncateTable returns false) return Some(false) else // None of the dialect implements this method, return the superclass default value return None ```
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