Laravel returns 当参数作为整数传递时,零而不是实际的单元格值

Laravel returns zero instead of the actual cell value when a parameter passed as an integer

我有一个来自 MariaDB 视图的非常简单的查询:

SELECT c.amount, c.discount 
FROM factors_view as c
WHERE c.factor_id = 358

当我在 HeidiSQL 中 运行 这个查询时,我得到这个结果:amount = 16000, discount = 1200

但在 Laravel 5.7 原始查询中

$result = \DB::select("
   SELECT c.amount,c.discount 
   FROM factors_view as c
   WHERE c.factor_id = 358"
);

结果:amount = 16000, discount = 0 当我将参数放在引号之间时:

$result = \DB::select("
   SELECT c.amount,c.discount 
   FROM factors_view as c
   WHERE c.factor_id = '358'"
);

结果:amount = 16000, discount = 1200

c.factor_id 的类型是 int(10) unsigned

这对我来说很奇怪;因为区别在于查询条件,而不是选择!

输出是特定列上零值的同一行!

有谁知道发生了什么事吗?

这是我的两个查询的查询日志:

1)
query:"select `c`.`amount`, `c`.`discount` from `factors_view` as `c` where `c`.`factor_id` = ?"
bindings:[0:358]

2)
query:"select `c`.`amount`, `c`.`discount` from `factors_view` as `c` where `c`.`factor_id` = ?"
bindings:[0:"358"]

终于,我找到了这个麻烦错误的原因。为了更正错误,我在视图中更改了 factor_id 的类型:

CAST(factor_id AS UNSIGNED) AS factor_id 

它工作正常。

虽然错误已修复,但我仍然没有意识到这种行为。 where 条件必须影响行,而不是单元格的值。这可能是一个 doctrine/dbal 错误?!

请提供SHOW CREATE TABLE.

猜测 factor_idVARCHAR,而它应该是 INT

int_col = 123     -- can use index
int_col = '123'   -- can use index
char_col = 123    -- 123 dominates; must check all rows, converting char_col to int
char_col = '123'  -- can use index