[GitHub] [hudi] ashishsinghi commented on issue #5180: [SUPPORT] Which hudi deltastreamer configuration to use with JSONKafkaSource when target schema is fixed and source contains sparse events

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

ashishsinghi commented on issue #5180:
URL: https://github.com/apache/hudi/issues/5180#issuecomment-1243719433

   I came across this and added a unit test case in _TestOverwriteNonDefaultsWithLatestAvroPayload_ to check whether partial updates works or not by using _OverwriteNonDefaultsWithLatestAvroPayload_.  It does work! JFYR below is sample UT which I used to verify the same.
   
   ```
   @Test
   public void test() throws IOException {
     Schema schema = Schema.createRecord(Arrays.asList(
             new Schema.Field("id", Schema.createUnion(Schema.create(Schema.Type.STRING), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("salesordernumber", Schema.createUnion(Schema.create(Schema.Type.STRING), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("salesorderline", Schema.createUnion(Schema.create(Schema.Type.INT), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("tenant", Schema.createUnion(Schema.create(Schema.Type.INT), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("martid", Schema.createUnion(Schema.create(Schema.Type.INT), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("businessunitid", Schema.createUnion(Schema.create(Schema.Type.INT), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("ordertakents", Schema.createUnion(Schema.create(Schema.Type.LONG), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("orderpurpose", Schema.createUnion(Schema.create(Schema.Type.STRING), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("ordermanagementcreatedts", Schema.createUnion(Schema.create(Schema.Type.LONG), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("purchasecontractid", Schema.createUnion(Schema.create(Schema.Type.INT), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("orderprocessedby", Schema.createUnion(Schema.create(Schema.Type.STRING), Schema.create(Schema.Type.NULL)), "", null),
             new Schema.Field("test", Schema.createUnion(Schema.create(Schema.Type.STRING), Schema.create(Schema.Type.NULL)), "", null)
             ));
        
     GenericRecord insert = new GenericData.Record(schema);
     insert.put("id", "5732110509405_1");
     insert.put("salesordernumber", "5732110509405");
     insert.put("ordertakents", 1635969661000L);
     insert.put("test", "inserted");
    
     GenericRecord upsert = new GenericData.Record(schema);
     upsert.put("id", "5732110509405_1");
     upsert.put("salesorderline", 1);
     upsert.put("tenant", 1);
     upsert.put("martid", 21);
     upsert.put("ordertakents", 1635969661000L);
     upsert.put("test", "updated");
    
     GenericRecord final_output = new GenericData.Record(schema);
     final_output.put("id", "5732110509405_1");
     final_output.put("salesordernumber", "5732110509405");
     final_output.put("salesorderline", 1);
     final_output.put("tenant", 1);
     final_output.put("martid", 21);
     final_output.put("ordertakents", 1635969661000L);
     final_output.put("test", "updated");
    
     OverwriteNonDefaultsWithLatestAvroPayload payload2 = new OverwriteNonDefaultsWithLatestAvroPayload(upsert, 2);
     assertEquals(payload2.combineAndGetUpdateValue(insert, schema).get(), final_output);
   }
   ```
   


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