xuanyuanking opened a new pull request #27454: [SPARK-28228][SQL] Change the default behavior for nested WITH clause URL: https://github.com/apache/spark/pull/27454 ### What changes were proposed in this pull request? This is a follow-up for #25029, in this PR we throw an AnalysisException for nested WITH clause. In this way, the config `spark.sql.legacy.ctePrecedence.enabled` should be set explicitly for the expected behavior. ### Why are the changes needed? The original change is risky, it may change behavior silently. ### Does this PR introduce any user-facing change? Yes, change the config `spark.sql.legacy.ctePrecedence.enabled` as optional. ### How was this patch tested? New UT.
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