[英]Is there any way to perform GROUP BY operation in GraphQL?
我需要使用表中的特定字段對表中的數據進行分組。 並且在 GraphQL 中找不到 GROUP BY 功能。 有沒有辦法做到這一點?
當前格式:
[
{
"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 是一種API 查詢語言,它並不真正“包含特性”,如 GroupBy、Count、Sort 等。這些特性或查詢必須在服務器中實現(GraphQL API),它為您提供了幾個選項:
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