You are viewing a single comment's thread from:RE: 每天进步一点点：SQL 当标识符（字段名、列名）遇到保留关键字View the full contextoflyhigh (84)Oin HIVE CN 中文社区 • last year 补充两个链接： If i use SQL Server key name( like where , select, value ) as one of the column name in my user defined table, is there any performance impact ? Select columns which are named after reserved keywords