Data mapping bug

[xrayffa]

$data = $medoo->select('user', ['id', 'name']) 结果正常： [{"id":"1","name":"张三"}]

$data = $medoo->select('user', ['id', '映射'=> ['name']]); 结果正常： [{"id":"1","映射":{"name":"张三"}}]

$data = $medoo->select('user', [ '映射'=> ['name']]); 结果报错： Fatal error: Uncaught InvalidArgumentException: Incorrect column name "映射" in 。。。。

$data = $medoo->select('user', [ 'name'=> ['name']]); 结果异常： {"张三":{"name":"张三"} 怎么把字段的值作为键名了？

$data = $medoo->select('user', [ 'userData'=> ['name']]); 结果为空！

$data = $medoo->select('user', ['id（随便加一个存在的字段名）', 'userData'=> ['name']]); 结果正常： [{"id":"1","userData":{"name":"张三"}}] 但这样岂不是达不到数据分组的目的？

[catfan]

That's because you are using Index Mapping not Data Mapping that the key: [array] as the first value of column parameter.

https://medoo.in/api/select (#Index Mapping section)

The way to solve this problem:

1. Add more columns as possible.
2. Just use it without data mapping, because there is no need for that with only one mapping.

   // What is this struct for in the real production environment?
   [
   {
       "userData": ["foo"]
   },
   {
       "userData": ["bar"]
   }
   ]

3. Or create a new empty stack array, and push any value fetched from the database as the mapping struct whatever you want.