MemSQL-追加查询类型对象

MemSQL定义了可在存储过程中使用的查询类型对象

例如，您可以执行以下操作：

v_q QUERY（a INT，b INT）=选择1作为a，选择2作为b

我想做的是附加不同的查询对象，类似于下面两个选项中的任何一个：

鉴于：

q_1 QUERY(a INT, b INT) = SELECT 1, 2;
q_2 QUERY (a INT, b INT) = SELECT 2, 3;

第一种方法：

q_3 QUERY(a INT, b INT) = q_2 + q_3;
ECHO q_3;

ECHO q_2 + UNION SELECT 9, 10;

第二种方法：

q_3 QUERY(a INT, b INT) = q_2 + q_3;
ECHO q_3;

ECHO q_2 + UNION SELECT 9, 10;

有没有办法做到这一点？
您可以将查询类型变量看作是表示select语句或视图的变量，因此您的第一种方法可以扩展为：

q_3 QUERY(a INT, b INT) = (SELECT 1, 2) as q_1 + (SELECT 2, 3) as q2;

q_3 QUERY(a INT, b INT) = (SELECT 2, 3) as q_2 + UNION SELECT 9, 10;

q_3 QUERY(a INT, b INT, c INT, d INT) = SELECT * FROM q_1 JOIN q_2;

q_3 QUERY(a INT, b INT) = SELECT* FROM q_1 UNION ALL SELECT * FROM q_2;

您的第二种方法扩展为：

q_3 QUERY(a INT, b INT) = (SELECT 1, 2) as q_1 + (SELECT 2, 3) as q2;

q_3 QUERY(a INT, b INT) = (SELECT 2, 3) as q_2 + UNION SELECT 9, 10;

q_3 QUERY(a INT, b INT, c INT, d INT) = SELECT * FROM q_1 JOIN q_2;

q_3 QUERY(a INT, b INT) = SELECT* FROM q_1 UNION ALL SELECT * FROM q_2;

它们都不是有效的SQL select语句

您可能需要以下内容：

q_3 QUERY(a INT, b INT) = (SELECT 1, 2) as q_1 + (SELECT 2, 3) as q2;

q_3 QUERY(a INT, b INT) = (SELECT 2, 3) as q_2 + UNION SELECT 9, 10;

q_3 QUERY(a INT, b INT, c INT, d INT) = SELECT * FROM q_1 JOIN q_2;

q_3 QUERY(a INT, b INT) = SELECT* FROM q_1 UNION ALL SELECT * FROM q_2;

这将创建一个4列查询类型变量，将
q_2
列附加到
q_1
列

或者类似于：

q_3 QUERY(a INT, b INT) = (SELECT 1, 2) as q_1 + (SELECT 2, 3) as q2;

q_3 QUERY(a INT, b INT) = (SELECT 2, 3) as q_2 + UNION SELECT 9, 10;

q_3 QUERY(a INT, b INT, c INT, d INT) = SELECT * FROM q_1 JOIN q_2;

q_3 QUERY(a INT, b INT) = SELECT* FROM q_1 UNION ALL SELECT * FROM q_2;

这将创建一个2列查询类型变量，将
q_2
行附加到
q_1