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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2019/02/07 14:39:22 UTC
[GitHub] igalshilman commented on a change in pull request #7658:
[FLINK-10493][core] Migrating the TupleSerializerBase serializers family
igalshilman commented on a change in pull request #7658: [FLINK-10493][core] Migrating the TupleSerializerBase serializers family
URL: https://github.com/apache/flink/pull/7658#discussion_r254708093
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File path: flink-core/src/main/java/org/apache/flink/api/common/typeutils/CompositeTypeSerializerSnapshot.java
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@@ -155,7 +155,7 @@ public final void readSnapshot(int readVersion, DataInputView in, ClassLoader us
TypeSerializerSchemaCompatibility<T> internalResolveSchemaCompatibility(
TypeSerializer<T> newSerializer,
TypeSerializerSnapshot<?>[] snapshots) {
- if (newSerializer.getClass() != correspondingSerializerClass) {
+ if (!correspondingSerializerClass.isInstance(newSerializer)) {
Review comment:
It is here because some of the tuple serializers snapshot are using an instance of `SpecificCaseClassSerializer` (i.e. `Tuple2CaseClassSerializerSnapshot`) during the migration path from pre 1.8 (where previously all the tuple related serializers used the same `TypeSerializerConfigSnapshot`)
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