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  1. Apache Hudi
  2. HUDI-3304

Support partial update payload

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    Description

      current status

      • OverwriteNonDefaultsWithLatestAvroPayload implement partial update behavior in combineAndGetUpdateValue method
      • Spark sql also have a 'Merge into' syntax support partial update by ExpressionPayload,
      • both OverwriteNonDefaultsWithLatestAvroPayload and ExpressionPayload can not handle partial update in preCombine method, so they can only support partial update with COW table

      solution

      make preCombine function also support partial update(need pass schema as parameter)

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          Jian Feng

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              fengjian_428 Jian Feng
              fengjian_428 Jian Feng
              Sagar Sumit, Shiyan Xu
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