jonvex commented on code in PR #9083:
URL: https://github.com/apache/hudi/pull/9083#discussion_r1251341306
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hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/analysis/HoodieAnalysis.scala:
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@@ -43,23 +43,29 @@ object HoodieAnalysis extends SparkAdapterSupport {
val rules: ListBuffer[RuleBuilder] = ListBuffer()
// NOTE: This rule adjusts [[LogicalRelation]]s resolving into Hudi tables
such that
- // meta-fields are not affecting the resolution of the target
columns to be updated by Spark.
+ // meta-fields are not affecting the resolution of the target
columns to be updated by Spark (Except in the
+ // case of MergeInto. We leave the meta columns on the target table,
and use other means to ensure resolution)
Review Comment:
It makes aligning the schema more difficult so it could be done in a followup
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