HoodieKeyException Is Reported When Data Is Collected

Question

Is it possible to use a nullable field that contains null records as a primary key when creating a Hudi table?

Answer

No.

HoodieKeyException is returned when a nullable field that contains null records is used as the primary key.

Caused by: org.apache.hudi.exception.HoodieKeyException: recordKey value: "null" for field: "name" cannot be null or empty.
at org.apache.hudi.keygen.SimpleKeyGenerator.getKey(SimpleKeyGenerator.java:58)
at org.apache.hudi.HoodieSparkSqlWriter$$anonfun$1.apply(HoodieSparkSqlWriter.scala:104)
at org.apache.hudi.HoodieSparkSqlWriter$$anonfun$1.apply(HoodieSparkSqlWriter.scala:100)