mysql - MariaDB 中表连接的最大数量是多少？

Question

MariaDB 10 表连接数是否限制为61 as is the case for MySQL还是其他号码？

(我无法在 MariaDB documentation 中或通过谷歌搜索找到答案)。

Answer 1

MariaDB 在一个连接中具有相同的最大 61 个表数。

这个查询

CREATE TABLE t (i INT(10) NOT NULL);
select *
from t a01 join t a02 join t a03 join t a04 join t a05 join t a06 join t a07 join t a08 join t a09 join t a10
join t a11 join t a12 join t a13 join t a14 join t a15 join t a16 join t a17 join t a18 join t a19 join t a20
join t a21 join t a22 join t a23 join t a24 join t a25 join t a26 join t a27 join t a28 join t a29 join t a30
join t a31 join t a32 join t a33 join t a34 join t a35 join t a36 join t a37 join t a38 join t a39 join t a40
join t a41 join t a42 join t a43 join t a44 join t a45 join t a46 join t a47 join t a48 join t a49 join t a50
join t a51 join t a52 join t a53 join t a54 join t a55 join t a56 join t a57 join t a58 join t a59 join t a60
join t a61 join t a62;

yields 错误 1116 (HY000):表太多； MariaDB 一次连接只能使用 61 个表。