VALID COLUMN NAME MUST BEGIN WITH A LETTER, BE LESS THAN OR EQUAL TO 30 CHARACTERS, AND CONSIST OF ONLY ALPHANUMERIC CHARACTERS AND THE SPECIAL CHARACTERS $, _, AND #.

• 一个无效的列名必须是以字母开头，小于30个字符，并且只包含字母、数字或一些特殊的符号%24,_,%23。