[GitHub] [hudi] alexeykudinkin commented on pull request #4716: [HUDI-3322][HUDI-3343] Fixing Metadata Table Records Duplication Issues

[GitBox <gi...@apache.org>]

alexeykudinkin commented on pull request #4716:
URL: https://github.com/apache/hudi/pull/4716#issuecomment-1028323837


   @nsivabalan here's the test:
   ```
     @Test
     void testAvroBWC() throws IOException {
       Writer w = new Writer("foo", 0xDEAD);
       byte[] buf = HoodieAvroUtils.avroToBytes(w);
       GenericRecord r = HoodieAvroUtils.bytesToAvro(buf, Writer.SCHEMA$, Reader.SCHEMA$);
       assertEquals(w.getKey(), r.get("key"));
     }
   ```
   
   For the following schema:
   ```
   {
     "namespace": "org.apache.hudi.avro.model",
     "type": "record",
     "name": "TestAvroRecord",
     "fields": [
       {
         "name": "writer",
         "type": ["null", {
           "type": "record",
           "name": "Writer",
           "fields": [
             {
               "name": "key",
               "type": ["null", "string"]
             },
             {
               "name": "value",
               "type": ["null", "int"]
             }
           ]
         }]
       },
       {
         "name": "reader",
         "type": ["null",     {
           "name": "Reader",
           "type": "record",
           "fields": [
             {
               "name": "key",
               "type": ["null", "string"]
             }
           ]
         }]
       }
     ]
   }
   ```
   
   Working as expected


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