AngersZhuuuu edited a comment on pull request #30957:
URL: https://github.com/apache/spark/pull/30957#issuecomment-752650651


   > > In spark now I just make it support default 7 level.
   > 
   > Why do we need this limit for the Spark no-serde case?
   
   I'm just not sure about the limit, as I have said in pr desc, hive have two 
config to control level size.
   
https://github.com/apache/hive/blob/5171037313f0fc370f502f06c10c58766a6483d1/serde/src/java/org/apache/hadoop/hive/serde2/lazy/LazySerDeParameters.java#L250-L299


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