ann created HUDI-1573:
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Summary: Spark Sql Writer support Multi preCmp Field
Key: HUDI-1573
URL: https://issues.apache.org/jira/browse/HUDI-1573
Project: Apache Hudi
Issue Type: Improvement
Components: Common Core
Reporter: ann
HoodieSparkSqlWriter has a param PRECOMBINE_FIELD_OPT_KEY , which specify a
nested field.
Now, support getMultiNestedFieldVal process. If PRECOMBINE_FIELD_OPT_KEY has
seperator ',' , thus multi nested fields to be compared , to solve duplicated
input records before tag.
Example : `timestamp`, `gtid` in binlog source .
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