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ALTER TABLE table_nameSET TBLPROPERTIES (property_name=property_value, ...)
table_name：需要的表名字。property_name: 需要修改的属性名称。property_value：需要修改的属性值。ALTER TABLE orders SET TBLPROPERTIES ('notes'="Please don't drop this table.");
ALTER TABLE table_nameUNSET TBLPROPERTIES (property_name, ...)
table_name：需要的表名字。property_name: 需要修改的属性名称。ALTER TABLE dempts UNSET TBLPROPERTIES ('read.split.target-size')
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