anishshri-db commented on code in PR #49751:
URL: https://github.com/apache/spark/pull/49751#discussion_r1937968857


##########
common/utils/src/main/resources/error/error-conditions.json:
##########
@@ -4715,6 +4715,14 @@
     ],
     "sqlState" : "42K06"
   },
+  "STATE_STORE_SCHEMA_MUST_BE_NULLABLE" : {
+    "message" : [
+      "If schema evolution is enabled, all the fields in the schema for column 
family <columnFamilyName> must be nullable.",
+      "Please set the 'spark.sql.streaming.stateStore.encodingFormat' to 
'UnsafeRow' or make the schema nullable.",

Review Comment:
   This is stored in the offset log though. So maybe just say that they should 
make schema nullable ?



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