wangyum commented on issue #24372: [SPARK-27462][SQL] Enhance insert into hive 
table that could choose some columns in target table flexibly.
URL: https://github.com/apache/spark/pull/24372#issuecomment-496981242
 
 
   @beliefer Hive metastore is just an implementation of `ExternalCatalog`. We 
support different versions of Hive metastore. It cannot be said that the 
default value is supported when using Hive 3.1 metastore, while the default 
value is not supported when using Hive 1.2 metastore. One possible 
implementation is similar to bucket, which is stored in table properties:
   
https://github.com/apache/spark/blob/f9776e389215255dc61efaa2eddd92a1fa754b48/sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveExternalCatalog.scala#L444-L459
   Please correct me if I'm wrong.

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