danny0405 commented on code in PR #13650:
URL: https://github.com/apache/hudi/pull/13650#discussion_r2300707690
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hudi-spark-datasource/hudi-spark-common/src/main/scala/org/apache/hudi/SparkBaseIndexSupport.scala:
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@@ -173,7 +174,13 @@ abstract class SparkBaseIndexSupport(spark: SparkSession,
var recordKeyQueries: List[Expression] = List.empty
var compositeRecordKeys: List[String] = List.empty
val recordKeyOpt = getRecordKeyConfig
- val isComplexRecordKey = recordKeyOpt.map(recordKeys =>
recordKeys.length).getOrElse(0) > 1
+ val isComplexRecordKey = {
+ val fieldCount = recordKeyOpt.map(recordKeys =>
recordKeys.length).getOrElse(0)
+ // Consider as complex if:
+ // 1. Multiple fields (> 1), OR
+ // 2. Using complex key generator with single record key field
+ fieldCount > 1 ||
isComplexKeyGeneratorWithSingleRecordKeyField(metaClient.getTableConfig)
Review Comment:
the write config flag is missing?
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