Github user zsxwing commented on a diff in the pull request: https://github.com/apache/spark/pull/17896#discussion_r115348902 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala --- @@ -2457,6 +2457,19 @@ object CleanupAliases extends Rule[LogicalPlan] { } /** + * Ignore event time watermark in batch query, which is only supported in Structured Streaming. + * TODO: add this rule into analyzer rule list. + */ +object CheckEventTimeWatermark extends Rule[LogicalPlan] { --- End diff -- Could you rename it to `EliminateEventTimeWatermark` and add it into `Analyzer.batches` as one of `Substitution` rules?
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