Github user uncleGen commented on a diff in the pull request:
https://github.com/apache/spark/pull/17896#discussion_r115415668
--- 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 --
@zsxwing This pr does some prepare work before we add
`EliminateEventTimeWatermark ` into `Analyzer.batches`. Could you please take a
review?
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