HIVE-12274 (C5.13) seems that the SERDE_PARAMS.PARAM_VALUE max length is increased in all the supported RDBMS to a bigger value while on our side we kept to 4k (depending by the RDBMS the datatype used increased the length between 32k and 64k).
I saw that those lines are not changed in the latest releases:
Not sure if can be done without breaking anything, however could you evaluate if it is possible to safely increase it to a bigger value? If that case could you get this Jira in your backlog?
It will allow as example the creation of avro table with avro.schema.literal > 4k as in Hive instead to exit with: