Appendix with SQL operator

• CASE WHEN contains sub-query
• INSERT INTO tbl_name (col1, col2, …) SELECT * FROM tbl_name WHERE col3 = ?（The SELECT clause does not support * and the built-in distributed primary key generator）
• SELECT MAX(tbl_name.col1) FROM tbl_name (If the query column is a function expression, use the table alias instead of the table name）