danny0405 commented on code in PR #9123:
URL: https://github.com/apache/hudi/pull/9123#discussion_r1255177050
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hudi-spark-datasource/hudi-spark-common/src/main/scala/org/apache/hudi/HoodieSparkSqlWriter.scala:
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@@ -1094,6 +1094,11 @@ object HoodieSparkSqlWriter {
if (mergedParams.contains(PRECOMBINE_FIELD.key())) {
mergedParams.put(HoodiePayloadProps.PAYLOAD_ORDERING_FIELD_PROP_KEY,
mergedParams(PRECOMBINE_FIELD.key()))
}
+ if (mergedParams.get(OPERATION.key()).get == INSERT_OPERATION_OPT_VAL &&
mergedParams.contains(DataSourceWriteOptions.INSERT_DUP_POLICY.key())
+ && mergedParams.get(DataSourceWriteOptions.INSERT_DUP_POLICY.key()).get
!= FAIL_INSERT_DUP_POLICY) {
+ // enable merge allow duplicates when operation type is insert
+
mergedParams.put(HoodieWriteConfig.MERGE_ALLOW_DUPLICATE_ON_INSERTS_ENABLE.key(),
"true")
Review Comment:
There is no much meaningness to keep backwards compatible if the behavior
itself is not correct from user's intuition,
because most of the users that use `INSERT` operation does not need
deduplication and they do not want to specify a record key either.
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