[英]Is there any way to perform GROUP BY operation in GraphQL?
我需要使用表中的特定字段对表中的数据进行分组。 并且在 GraphQL 中找不到 GROUP BY 功能。 有没有办法做到这一点?
当前格式:
[
{
"my_state":"karnatak",
"from_state":"kerala",
"route":"wayanad"
},
{
"my_state":"karnatak",
"from_state":"kerala",
"route":"Mangalore"
},
{
"my_state":"karnatak",
"from_state":"kerala",
"route":"Palakkad"
},
{
"my_state":"karnatak",
"from_state":"tamilnadu",
"route":"hosure"
},
{
"my_state":"karnatak",
"from_state":"tamilnadu",
"route":"selam"
},
{
"my_state":"karnatak",
"from_state":"tamilnadu",
"route":"chennai"
}
]
所需格式:
from_state: "karnatak",
route: [
{
route: "chennai"
},
{
route: "selam"
},
............
]
GraphQL 是一种API 查询语言,它并不真正“包含特性”,如 GroupBy、Count、Sort 等。这些特性或查询必须在服务器中实现(GraphQL API),它为您提供了几个选项:
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