在查询中使用预准备语句的结果作为临时表

Question

如果我有预备陈述的输出;如何将其用作查询的来源？

CALL `myProcedure`;

PREPARE stmnt FROM @allSQL;

EXECUTE stmnt;

DEALLOCATE PREPARE stmnt;

所以，我从EXECUTE stmnt;得到一个输出（让我们称之为tmp），我想按照以下方式运行查询：

SELECT * FROM (EXECUTE stmnt) AS tmp WHERE this = that;

Answer 1

您可以准备一个包含查询结果的CREATE TEMPORARY TABLE语句：

SET @createSQL = CONCAT('CREATE TEMPORARY TABLE tmp AS ', @allSQL);
PREPARE stmt FROM @createSQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SELECT * FROM tmp WHERE this = that;