C# 将Agregate计数中的DISTINCT转换为LINQ

我正在使用Linqer将以下SQL转换为LINQ

SELECT CC.col1,CC.col2,CC.col3 FROM dbo.Table1 CC
WHERE CC.Status IN (0,3) AND CC.col4 IN (2,3,4,5)
GROUP BY CC.col1,CC.col2,CC.col3
HAVING COUNT(DISTINCT CC.Status) = 2

但它显示了以下错误

---

SQL无法转换为LINQ:Agregate COUNT中的DISTINCT无法转换为LINQ

在最后一个子句

COUNT（DISTINCT CC.Status）

中，此部分的转换失败。如果删除

DISTINCT

，它可能能够转换SQL。在您看到它执行

Status.Count（）

的部分中，将其更改为

Status.Distinct（）.Count（）

，您应该会做得很好

更改sql选择，如下所示：

SELECT CC.col1,CC.col2,CC.col3 FROM dbo.Table1 CC
WHERE CC.Status IN (0,3) AND CC.col4 IN (2,3,4,5)
GROUP BY CC.col1,CC.col2,CC.col3
HAVING (select  COUNT(DISTINCT CC.Status) FROM dbo.Table1 CC) = 2

 from CC in db.Table1
  where
 (new int[] {0, 3 }).Contains(CC.Status) &&
 (new int[] {2, 3, 4, 5 }).Contains(CC.col4)
 group CC by new {
   CC.col1,
   CC.col2,
   CC.col3
 } into g
 where
 ((from Table1 in db.Table1
 select new {
  g.Key.Status
}).Distinct()).Count(p => g.Key.Status != null) == 2
 select new {
   g.Key.col1,
   g.Key.col2,
   g.Key.col3
}

而Linqer中的输出将如下所示：

SELECT CC.col1,CC.col2,CC.col3 FROM dbo.Table1 CC
WHERE CC.Status IN (0,3) AND CC.col4 IN (2,3,4,5)
GROUP BY CC.col1,CC.col2,CC.col3
HAVING (select  COUNT(DISTINCT CC.Status) FROM dbo.Table1 CC) = 2

 from CC in db.Table1
  where
 (new int[] {0, 3 }).Contains(CC.Status) &&
 (new int[] {2, 3, 4, 5 }).Contains(CC.col4)
 group CC by new {
   CC.col1,
   CC.col2,
   CC.col3
 } into g
 where
 ((from Table1 in db.Table1
 select new {
  g.Key.Status
}).Distinct()).Count(p => g.Key.Status != null) == 2
 select new {
   g.Key.col1,
   g.Key.col2,
   g.Key.col3
}