SQL从CASE语句返回多个值

如何重写此SQL语句以执行所需操作

 SELECT * FROM TABLE 
    WHERE COLUMN_NAME_1 IN (CASE 
        WHEN COLUMN_NAME_2 = 'X' THEN 'A' 
        WHEN COLUMN_NAME_2 = 'Y' THEN 'B', 'C' END)

显然，我不能从CASE子句返回多个值。。。那我还能怎么写呢？我很确定我今天很慢，因为这看起来很容易

 SELECT * FROM Table WHERE
    (COLUMN_NAME_2 = 'X' AND COLUMN_NAME_1 = 'A') OR
    (COLUMN_NAME_2 = 'Y' AND COLUMN_NAME_1 IN ('B', 'C'))

或

这假定您只希望在列_NAME_2中包含X或Y的结果。如果需要其他行，则无法区分原始SQL中的哪些行

 SELECT * FROM Table WHERE COLUMN_NAME_2 = 'X' AND COLUMN_NAME_1 = 'A'
 UNION ALL
 SELECT * FROM Table WHERE COLUMN_NAME_2 = 'Y' AND COLUMN_NAME_1 IN ('B', 'C')