ALTER TABLE table_nameSET TBLPROPERTIES (property_name=property_value, ...)
table_name: Name of the target table.property_name: Name of the attribute to be updated.property_value: Value of the attribute to be updated.ALTER TABLE orders SET TBLPROPERTIES ('notes'="Please don't drop this table.");
ALTER TABLE table_nameUNSET TBLPROPERTIES (property_name, ...)
table_name: Name of the target tableproperty_name: Name of the attribute to be deleted.ALTER TABLE dempts UNSET TBLPROPERTIES ('read.split.target-size')
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