tisonkun commented on PR #18774:
URL: https://github.com/apache/pulsar/pull/18774#issuecomment-1352373155

   Hi @zhicwu! Let me ask some questions in details:
   
   > Data format between client and server was changed from TabSeparated to 
RowBinary, meaning we no longer can pass null to a non-nullable column
   
   What's the behavior if we pass null to a non-nullable column previously?
   
   > Type mapping and timezone handling were changed as well, meaning same 
query may give us different results but I guess it should be mainly about 
timestamp with timezone
   
   Is there a CHANGELOG for the details how the mapping and handling change?


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