alexeykudinkin commented on code in PR #6355:
URL: https://github.com/apache/hudi/pull/6355#discussion_r974659357
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hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/spark/sql/hudi/command/MergeIntoHoodieTableCommand.scala:
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@@ -150,15 +151,35 @@ case class MergeIntoHoodieTableCommand(mergeInto:
MergeIntoTable) extends Hoodie
// Create the write parameters
val parameters = buildMergeIntoConfig(hoodieCatalogTable)
+ val expectedQueryColumns = hoodieCatalogTable.tableSchemaWithoutMetaFields
+
+ val coercedQueryOutput =
coerceQueryOutputColumns(StructType(expectedQueryColumns),
sourceDF.logicalPlan, hoodieCatalogTable, conf)
Review Comment:
We can't do that unfortunately: `MERGE INTO` semantic does allow you to
merge arbitrary input that might be drastically different from your target
table, controlling what goes where w/ matched/non-matched statements (`t.id =
s._other_id`, etc)
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