vinothchandar commented on a change in pull request #2106:
URL: https://github.com/apache/hudi/pull/2106#discussion_r509908759
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File path:
hudi-client/hudi-spark-client/src/main/java/org/apache/hudi/table/action/commit/SparkWriteHelper.java
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@@ -58,7 +60,8 @@ public static SparkWriteHelper newInstance() {
return new Tuple2<>(key, record);
}).reduceByKey((rec1, rec2) -> {
@SuppressWarnings("unchecked")
- T reducedData = (T) rec1.getData().preCombine(rec2.getData());
+ T reducedData = schema != null && !schema.get().isEmpty() ? (T)
rec1.getData().preCombine(rec2.getData(), new
Schema.Parser().parse(schema.get()))
Review comment:
Ah another issue here. This can potentially break old payload classes.
i.e those classes that don't have precombine(,schema) and be non-backwards
compatible.
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