description: The explained MSSQL subscription in our documentation
url: /v1/graphql/explain
status: 200
response:
  sql: "SELECT ISNULL((SELECT [row].[result_id] AS [result_id],\n       [result].[json] AS [result]\nFROM OPENJSON((N''+NCHAR(91)+''+NCHAR(91)+''+NCHAR(34)+'00000000-0000-0000-0000-000000000000'+NCHAR(34)+','+NCHAR(123)+''+NCHAR(34)+'synthetic'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(91)+''+NCHAR(93)+','+NCHAR(34)+'query'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(123)+''+NCHAR(125)+','+NCHAR(34)+'session'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(123)+''+NCHAR(125)+''+NCHAR(125)+''+NCHAR(93)+''+NCHAR(93)+''))\n     WITH ([result_id] UNIQUEIDENTIFIER '$[0]',\n          [result_vars] NVARCHAR(MAX) '$[1]' AS JSON) AS [row]\nOUTER APPLY (SELECT ISNULL((SELECT (SELECT ISNULL((SELECT [t_user1].[name] AS [name]\n                     FROM [dbo].[user] AS [t_user1]\n                     FOR JSON PATH, INCLUDE_NULL_VALUES), '[]')) AS [user]\n             FOR JSON PATH, INCLUDE_NULL_VALUES, WITHOUT_ARRAY_WRAPPER), 'null')) \nAS [result]([json])\nFOR JSON PATH, INCLUDE_NULL_VALUES), '[]')"
  plan:
  - "SELECT ISNULL((SELECT [row].[result_id] AS [result_id],\n       [result].[json] AS [result]\nFROM OPENJSON((N''+NCHAR(91)+''+NCHAR(91)+''+NCHAR(34)+'00000000-0000-0000-0000-000000000000'+NCHAR(34)+','+NCHAR(123)+''+NCHAR(34)+'synthetic'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(91)+''+NCHAR(93)+','+NCHAR(34)+'query'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(123)+''+NCHAR(125)+','+NCHAR(34)+'session'+NCHAR(34)+''+NCHAR(58)+''+NCHAR(123)+''+NCHAR(125)+''+NCHAR(125)+''+NCHAR(93)+''+NCHAR(93)+''))\n     WITH ([result_id] UNIQUEIDENTIFIER '$[0]',\n          [result_vars] NVARCHAR(MAX) '$[1]' AS JSON) AS [row]\nOUTER APPLY (SELECT ISNULL((SELECT (SELECT ISNULL((SELECT [t_user1].[name] AS [name]\n                     FROM [dbo].[user] AS [t_user1]\n                     FOR JSON PATH, INCLUDE_NULL_VALUES), '[]')) AS [user]\n             FOR JSON PATH, INCLUDE_NULL_VALUES, WITHOUT_ARRAY_WRAPPER), 'null')) \nAS [result]([json])\nFOR JSON PATH, INCLUDE_NULL_VALUES), '[]')"
  - "  |--Compute Scalar(DEFINE:([Expr1010]=isnull([Expr1008],CONVERT_IMPLICIT(nvarchar(max),'[]',0))))"
  - '       |--UDX((OPENJSON_EXPLICIT.[result_id], [Expr1007]))'
  - '            |--Nested Loops(Left Outer Join)'
  - '                 |--Table-valued function'
  - "                 |--Compute Scalar(DEFINE:([Expr1007]=isnull([Expr1005],CONVERT_IMPLICIT(nvarchar(max),'[]',0))))"
  - '                      |--UDX(([Expr1004]))'
  - "                           |--Compute Scalar(DEFINE:([Expr1004]=isnull([Expr1001],CONVERT_IMPLICIT(nvarchar(max),'[]',0))))"
  - '                                |--UDX(([t_user1].[name]))'
  - '                                     |--Clustered Index Scan(OBJECT:([master].[dbo].[user].[PK__user__3213E83F9704D3EC] AS [t_user1]))'
query:
  query:
    query: |
      subscription getUsers {
        user {
          name
        }
      }
    operationName: "getUsers"