I'm using 6.1.1 of entity framework against SQL Server 2012.
I've attached the query in question to this issue.
When run against our DB directly (i.e. from the SQL Generated) this query responds in < 15ms.
However, when processed in Entity Framework it's ~650 ms to materialization to the projection (thus no tracking causing issues)
Further, when using Web API and Odata to do a top 100 it's even slower. (i.e. if I do a .ToArray() on the results in the endpoint in Web API controller first, it's faster than the filtered top 100 query through odata.
Worse, the inlinecount query by oData which causes a groupby on a count to be generated by Entity Framework, which is odd, takes < 10ms to process on the server, but takes the same length of time for Entity Framework to process as the full select thus doubling the service time.
I can understand some overhead, but we're talking about 100 records into a projection, it shouldn't take more than half a second to process this.
Also, I would have expected that, given the complexity of the where clause (generated using predicates) that the second time this was hit, that it would be drastically faster because of dynamic caching in EF 5+ but it doesn't make any difference at all.
I can provide you with the DTO that it's projecting into if it matters but it's just strings and datetimeoffsets straight up with no computation or anything.
Also note that all tests were done in release mode, not debug mode. And timers were used to isolate the 2 separate queries in a custom formatter and time how long it took entity framework to service them.
I went down to the DB level and created a DB reader and looped through the results and manually created the DTOs to work with (all of them, not the filtered ones) using the exact same query generated, just putting in different values for the params and it completed in < 30 ms for reference.
If you'd like me to somehow provide you with the built up predicate that generated this, please let me know and give me instructions and I'll be happy to do so.
Here's the resulting query (which again ,runs in 30 ms, but Entity Framework takes 2.5 seconds to produce the result and get it out the door with WebAPI:
SELECT TOP (#p__linq__15)
[Project45].[Status] AS [Status],
[Project45].[C6] AS [C1],
[Project45].[C7] AS [C2],
[Project45].[C1] AS [C3],
[Project45].[C8] AS [C4],
[Project45].[Priority] AS [Priority],
[Project45].[C9] AS [C5],
[Project45].[Name1] AS [Name],
[Project45].[C10] AS [C6],
[Project45].[Name2] AS [Name1],
[Project45].[C11] AS [C7],
[Project45].[C12] AS [C8],
[Project45].[C4] AS [C9],
[Project45].[C13] AS [C10],
[Project45].[C5] AS [C11],
[Project45].[C14] AS [C12],
[Project45].[C3] AS [C13],
[Project45].[C15] AS [C14],
[Project45].[C2] AS [C15],
[Project45].[C16] AS [C16],
[Project45].[Identifier] AS [Identifier],
[Project45].[C17] AS [C17],
[Project45].[Name] AS [Name2],
[Project45].[C18] AS [C18],
[Project45].[ID] AS [ID]
FROM ( SELECT
[Filter1].[ID1] AS [ID],
[Filter1].[Identifier] AS [Identifier],
[Filter1].[Name1] AS [Name],
[Filter1].[Priority] AS [Priority],
[Filter1].[Status] AS [Status],
[Filter1].[Name2] AS [Name1],
[Filter1].[Name3] AS [Name2],
CAST( [Filter1].[DueDate] AS datetimeoffset) AS [C1],
CAST( CASE WHEN ([Filter1].[CancelledOn] IS NULL) THEN CASE WHEN ([Filter1].[RejectedOn1] IS NULL) THEN CASE WHEN ([Filter1].[SubmittedOn] IS NULL) THEN [Filter1].[CreatedOn] ELSE [Filter1].[SubmittedOn] END ELSE [Filter1].[RejectedOn1] END ELSE [Filter1].[CancelledOn] END AS datetimeoffset) AS [C2],
CASE WHEN ([Filter1].[CancelledByID] IS NOT NULL) THEN [Filter1].[UserName1] WHEN ([Filter1].[RejectedByID1] IS NOT NULL) THEN [Filter1].[UserName2] WHEN ([Filter1].[SubmittedByID] IS NOT NULL) THEN [Filter1].[UserName3] ELSE [Filter1].[UserName4] END AS [C3],
CASE WHEN ([Filter1].[FirstName1] IS NULL) THEN N'' ELSE [Filter1].[FirstName2] END + N' ' + CASE WHEN ([Filter1].[LastName1] IS NULL) THEN N'' ELSE [Filter1].[LastName2] END AS [C4],
CAST( [Filter1].[SubmittedOn] AS datetimeoffset) AS [C5],
N'c4eabbaf-7433-430d-bdd7-2f9180bce7cc' AS [C6],
N'DueDate' AS [C7],
N'Priority' AS [C8],
N'Project' AS [C9],
N'RequestType' AS [C10],
N'Status' AS [C11],
N'SubmittedByName' AS [C12],
N'SubmittedOn' AS [C13],
N'MajorEventBy' AS [C14],
N'MajorEventDate' AS [C15],
N'Identifier' AS [C16],
N'Name' AS [C17],
N'ID' AS [C18]
FROM ( SELECT [Extent1].[ID] AS [ID1], [Extent1].[Identifier] AS [Identifier], [Extent1].[Name] AS [Name1], [Extent1].[Priority] AS [Priority], [Extent1].[DueDate] AS [DueDate], [Extent1].[CreatedOn] AS [CreatedOn], [Extent1].[CreatedByID] AS [CreatedByID], [Extent1].[SubmittedOn] AS [SubmittedOn], [Extent1].[SubmittedByID] AS [SubmittedByID], [Extent1].[RejectedOn] AS [RejectedOn1], [Extent1].[RejectedByID] AS [RejectedByID1], [Extent1].[CancelledOn] AS [CancelledOn], [Extent1].[CancelledByID] AS [CancelledByID], [Extent1].[Private] AS [Private], [Extent1].[Status] AS [Status], [Extent2].[UserName] AS [UserName1], [Extent3].[UserName] AS [UserName2], [Extent4].[UserName] AS [UserName3], [Extent5].[UserName] AS [UserName4], [Extent6].[Name] AS [Name2], [Extent7].[Name] AS [Name3], [Extent8].[FirstName] AS [FirstName1], [Extent9].[FirstName] AS [FirstName2], [Extent10].[LastName] AS [LastName1], [Extent11].[LastName] AS [LastName2]
FROM [dbo].[Requests] AS [Extent1]
LEFT OUTER JOIN [dbo].[Users] AS [Extent2] ON [Extent1].[CancelledByID] = [Extent2].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent3] ON [Extent1].[RejectedByID] = [Extent3].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent4] ON [Extent1].[SubmittedByID] = [Extent4].[ID]
INNER JOIN [dbo].[Users] AS [Extent5] ON [Extent1].[CreatedByID] = [Extent5].[ID]
INNER JOIN [dbo].[Projects] AS [Extent6] ON [Extent1].[ProjectID] = [Extent6].[ID]
INNER JOIN [dbo].[RequestTypes] AS [Extent7] ON [Extent1].[RequestTypeID] = [Extent7].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent8] ON [Extent1].[SubmittedByID] = [Extent8].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent9] ON [Extent1].[SubmittedByID] = [Extent9].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent10] ON [Extent1].[SubmittedByID] = [Extent10].[ID]
LEFT OUTER JOIN [dbo].[Users] AS [Extent11] ON [Extent1].[SubmittedByID] = [Extent11].[ID]
WHERE [Extent1].[isDeleted] <> cast(1 as bit)
) AS [Filter1]
WHERE (( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclDataMarts] AS [Extent12]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent13]
WHERE ([Extent12].[SecurityGroupID] = [Extent13].[SecurityGroupID]) AND ([Extent13].[UserID] = #p__linq__0)
)) AND ([Extent12].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestDataMarts] AS [Extent14]
WHERE ([Extent12].[DataMartID] = [Extent14].[DataMartID]) AND ([Extent14].[RequestID] = [Filter1].[ID1])
))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjects] AS [Extent15]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent16]
WHERE ([Extent15].[SecurityGroupID] = [Extent16].[SecurityGroupID]) AND ([Extent16].[UserID] = #p__linq__1)
)) AND ([Extent15].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier), cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent17]
WHERE ([Extent15].[ProjectID] = [Extent17].[ProjectID]) AND ([Extent17].[ID] = [Filter1].[ID1])
))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjectDataMarts] AS [Extent18]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent19]
WHERE ([Extent18].[SecurityGroupID] = [Extent19].[SecurityGroupID]) AND ([Extent19].[UserID] = #p__linq__2)
)) AND ([Extent18].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestDataMarts] AS [Extent20]
WHERE ([Extent18].[DataMartID] = [Extent20].[DataMartID]) AND ([Extent20].[RequestID] = [Filter1].[ID1])
)) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent21]
WHERE ([Extent18].[ProjectID] = [Extent21].[ProjectID]) AND ([Extent21].[ID] = [Filter1].[ID1])
))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclGlobal] AS [Extent22]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent23]
WHERE ([Extent22].[SecurityGroupID] = [Extent23].[SecurityGroupID]) AND ([Extent23].[UserID] = #p__linq__3)
)) AND ([Extent22].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier), cast('5ccb0ec2-006d-4345-895e-5dd2c6c8c791' as uniqueidentifier), cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier)))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclRequestSharedFolders] AS [Extent24]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent25]
WHERE ([Extent24].[SecurityGroupID] = [Extent25].[SecurityGroupID]) AND ([Extent25].[UserID] = #p__linq__4)
)) AND ([Extent24].[PermissionID] IN (cast('5ccb0ec2-006d-4345-895e-5dd2c6c8c791' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestSharedFolderRequests] AS [Extent26]
WHERE ([Extent24].[RequestSharedFolderID] = [Extent26].[RequestSharedFolderID]) AND ([Extent26].[RequestID] = [Filter1].[ID1])
))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclOrganizations] AS [Extent27]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent28]
WHERE ([Extent27].[SecurityGroupID] = [Extent28].[SecurityGroupID]) AND ([Extent28].[UserID] = #p__linq__5)
)) AND ([Extent27].[PermissionID] IN (cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent29]
WHERE ([Extent27].[OrganizationID] = [Extent29].[OrganizationID]) AND ([Extent29].[ID] = [Filter1].[ID1])
))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjectOrganizations] AS [Extent30]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent31]
WHERE ([Extent30].[SecurityGroupID] = [Extent31].[SecurityGroupID]) AND ([Extent31].[UserID] = #p__linq__6)
)) AND ([Extent30].[PermissionID] IN (cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent32]
WHERE ([Extent30].[ProjectID] = [Extent32].[ProjectID]) AND ([Extent32].[ID] = [Filter1].[ID1])
)) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent33]
WHERE ([Extent30].[OrganizationID] = [Extent33].[OrganizationID]) AND ([Extent33].[ID] = [Filter1].[ID1])
))
))) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclDataMarts] AS [Extent34]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent35]
WHERE ([Extent34].[SecurityGroupID] = [Extent35].[SecurityGroupID]) AND ([Extent35].[UserID] = #p__linq__7)
)) AND ([Extent34].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestDataMarts] AS [Extent36]
WHERE ([Extent34].[DataMartID] = [Extent36].[DataMartID]) AND ([Extent36].[RequestID] = [Filter1].[ID1])
)) AND ([Extent34].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjects] AS [Extent37]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent38]
WHERE ([Extent37].[SecurityGroupID] = [Extent38].[SecurityGroupID]) AND ([Extent38].[UserID] = #p__linq__8)
)) AND ([Extent37].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier), cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent39]
WHERE ([Extent37].[ProjectID] = [Extent39].[ProjectID]) AND ([Extent39].[ID] = [Filter1].[ID1])
)) AND ([Extent37].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjectDataMarts] AS [Extent40]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent41]
WHERE ([Extent40].[SecurityGroupID] = [Extent41].[SecurityGroupID]) AND ([Extent41].[UserID] = #p__linq__9)
)) AND ([Extent40].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestDataMarts] AS [Extent42]
WHERE ([Extent40].[DataMartID] = [Extent42].[DataMartID]) AND ([Extent42].[RequestID] = [Filter1].[ID1])
)) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent43]
WHERE ([Extent40].[ProjectID] = [Extent43].[ProjectID]) AND ([Extent43].[ID] = [Filter1].[ID1])
)) AND ([Extent40].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclGlobal] AS [Extent44]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent45]
WHERE ([Extent44].[SecurityGroupID] = [Extent45].[SecurityGroupID]) AND ([Extent45].[UserID] = #p__linq__10)
)) AND ([Extent44].[PermissionID] IN (cast('5d6dd388-7842-40a1-a27a-b9782a445e20' as uniqueidentifier), cast('a58791b5-e8af-48d0-b9cd-ed0b54e564e6' as uniqueidentifier), cast('0cabf382-93d3-4dac-aa80-2de500a5f945' as uniqueidentifier), cast('5ccb0ec2-006d-4345-895e-5dd2c6c8c791' as uniqueidentifier), cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ([Extent44].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclRequestSharedFolders] AS [Extent46]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent47]
WHERE ([Extent46].[SecurityGroupID] = [Extent47].[SecurityGroupID]) AND ([Extent47].[UserID] = #p__linq__11)
)) AND ([Extent46].[PermissionID] IN (cast('5ccb0ec2-006d-4345-895e-5dd2c6c8c791' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[RequestSharedFolderRequests] AS [Extent48]
WHERE ([Extent46].[RequestSharedFolderID] = [Extent48].[RequestSharedFolderID]) AND ([Extent48].[RequestID] = [Filter1].[ID1])
)) AND ([Extent46].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclOrganizations] AS [Extent49]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent50]
WHERE ([Extent49].[SecurityGroupID] = [Extent50].[SecurityGroupID]) AND ([Extent50].[UserID] = #p__linq__12)
)) AND ([Extent49].[PermissionID] IN (cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent51]
WHERE ([Extent49].[OrganizationID] = [Extent51].[OrganizationID]) AND ([Extent51].[ID] = [Filter1].[ID1])
)) AND ([Extent49].[Allowed] <> cast(1 as bit))
)) AND ( NOT EXISTS (SELECT
1 AS [C1]
FROM [dbo].[AclProjectOrganizations] AS [Extent52]
WHERE ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[SecurityGroupUsers] AS [Extent53]
WHERE ([Extent52].[SecurityGroupID] = [Extent53].[SecurityGroupID]) AND ([Extent53].[UserID] = #p__linq__13)
)) AND ([Extent52].[PermissionID] IN (cast('0549f5c8-6c0e-4491-be90-ee0f29652422' as uniqueidentifier), cast('40db7de2-eefa-4d31-b400-7e72ab34de99' as uniqueidentifier))) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent54]
WHERE ([Extent52].[ProjectID] = [Extent54].[ProjectID]) AND ([Extent54].[ID] = [Filter1].[ID1])
)) AND ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[Requests] AS [Extent55]
WHERE ([Extent52].[OrganizationID] = [Extent55].[OrganizationID]) AND ([Extent55].[ID] = [Filter1].[ID1])
)) AND ([Extent52].[Allowed] <> cast(1 as bit))
)) AND (([Filter1].[Private] <> cast(1 as bit)) OR (([Filter1].[Private] = 1) AND ([Filter1].[CreatedByID] = #p__linq__14)))
) AS [Project45]
ORDER BY [Project45].[Identifier] DESC, [Project45].[ID] ASC
EF take a long time to convert LINQ to a SQL query.
Your query is not automaticaly cached because it use an in-memory collection as parameter (the uuid collection).
See MSDN page Performance Considerations (Entity Framework).
A solution (not really ideal) is to serialize this parameter and use the String.Contains operator.
Related
I have an entity framework query to join applications with ethnicity table and group by ethnicity (Id and options) and then get the total count for each ethnicity and then get the individual counts based on status {open, Closed, Draft.. etc) with Iqueryable as I will need to use pagination for this query to get first 'x' or go to page 'y' so I cannot do toList and then get the values.
The current EF query is very slow and it's taking more time.
Can anyone help me to achieve the same result in a better way if possible?
var query = from app in Context.Application
join eth in Context.Ethnicities on app.EthnicityId equals eth.EthnicityId
group app by new
{
eth.EthnicityId,
eth.EthnicityOptions
}
into ethAgg
select new EthnicityView
{
Id = ethAgg.Key.EthnicityId,
Ethnicity = ethAgg.Key.EthnicityOptions,
Total = ethAgg.Count(),
Closed = ethAgg.Count(p => p.Closed),
Draft = ethAgg.Count(p => p.Draft ),
Inprogress = ethAgg.Count(p => p.Inprogress ),
Waiting = ethAgg.Count(p => p.Waiting),
Open = ethAgg.Count(p => p.Open )
};
Generated Sql
SELECT TOP (10)
[Project7].[EthnicityID] AS [EthnicityID],
[Project7].[C2] AS [C1],
[Project7].[C1] AS [C2],
[Project7].[C3] AS [C3],
[Project7].[C4] AS [C4],
[Project7].[C5] AS [C5],
[Project7].[C6] AS [C6],
[Project7].[C7] AS [C7]
FROM ( SELECT
[Project6].[C1] AS [C1],
[Project6].[EthnicityID] AS [EthnicityID],
[Project6].[EthnicityOptions] AS [C2],
[Project6].[C2] AS [C3],
[Project6].[C3] AS [C4],
[Project6].[C4] AS [C5],
[Project6].[C5] AS [C6],
[Project6].[C6] AS [C7]
FROM ( SELECT
[Project5].[C1] AS [C1],
[Project5].[EthnicityID] AS [EthnicityID],
[Project5].[EthnicityOptions] AS [EthnicityOptions],
[Project5].[C2] AS [C2],
[Project5].[C3] AS [C3],
[Project5].[C4] AS [C4],
[Project5].[C5] AS [C5],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent16]
INNER JOIN [dbo].[Ethnicity] AS [Extent18] ON [Extent16].[EthnicityID] = [Extent18].[EthnicityID]
WHERE ([Extent16].[Closed] = 1)
FROM ( SELECT
[Project4].[C1] AS [C1],
[Project4].[EthnicityID] AS [EthnicityID],
[Project4].[EthnicityOptions] AS [EthnicityOptions],
[Project4].[C2] AS [C2],
[Project4].[C3] AS [C3],
[Project4].[C4] AS [C4],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent13]
INNER JOIN [dbo].[Ethnicity] AS [Extent15] ON [Extent13].[EthnicityID] = [Extent15].[EthnicityID]
WHERE ([Extent13].[Closed] = 1)
FROM ( SELECT
[Project3].[C1] AS [C1],
[Project3].[EthnicityID] AS [EthnicityID],
[Project3].[EthnicityOptions] AS [EthnicityOptions],
[Project3].[C2] AS [C2],
[Project3].[C3] AS [C3],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent10]
INNER JOIN [dbo].[Ethnicity] AS [Extent12] ON [Extent10].[EthnicityID] = [Extent12].[EthnicityID]
WHERE ([Extent10].[Draft] = 1)
FROM ( SELECT
[Project2].[C1] AS [C1],
[Project2].[EthnicityID] AS [EthnicityID],
[Project2].[EthnicityOptions] AS [EthnicityOptions],
[Project2].[C2] AS [C2],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent7]
INNER JOIN [dbo].[Ethnicity] AS [Extent9] ON [Extent7].[EthnicityID] = [Extent9].[EthnicityID]
WHERE ([Extent7].[Inprogress] = 1)
FROM ( SELECT
[Project1].[C1] AS [C1],
[Project1].[EthnicityID] AS [EthnicityID],
[Project1].[EthnicityOptions] AS [EthnicityOptions],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent4]
INNER JOIN [dbo].[Ethnicity] AS [Extent6] ON [Extent4].[EthnicityID] = [Extent6].[EthnicityID]
WHERE ([Extent4].[Waiting] = 1)
FROM ( SELECT
[GroupBy1].[A1] AS [C1],
[GroupBy1].[K1] AS [EthnicityID],
[GroupBy1].[K2] AS [EthnicityOptions]
FROM ( SELECT
[Extent3].[EthnicityID] AS [K1],
[Extent3].[EthnicityOptions] AS [K2],
COUNT(1) AS [A1]
FROM [dbo].[Application] AS [Extent1]
INNER JOIN [dbo].[Ethnicity] AS [Extent3] ON [Extent1].[EthnicityID] = [Extent3].[EthnicityID]
GROUP BY [Extent3].[EthnicityID], [Extent3].[EthnicityOptions]
) AS [GroupBy1]
) AS [Project1]
) AS [Project2]
) AS [Project3]
) AS [Project4]
) AS [Project5]
) AS [Project6]
) AS [Project7]
ORDER BY [Project7].[EthnicityID] ASC
As there is no way we could achieve this from entity framework.
I tried moving this query to a stored procedure and split the individual counts and invoke that stored proc from entity framework.
I am trying to perform full text index search using EF 6.0. I am using IDbCommandInterceptor (http://www.entityframework.info/Home/FullTextSearch) perform Full text search but it is throwing me this exception:
Cannot use a CONTAINS or FREETEXT predicate on column 'FirstName'
because it is not full-text indexed.
Linq query:
ListOfEmployees = _context.EmployeeCvs.Include(x => x.Employee)
.Include(x => x.Tags)
.Include(x => x.ProjectExperiences)
.Where(x => x.Employee.FirstName.Contains(SearchQuery.Keyword) || x.Employee.LastName.Contains(SearchQuery.Keyword) || x.ProjectExperiences.Any(y => y.ProjectTitle.Contains(SearchQuery.Keyword) || y.Description.Contains(SearchQuery.Keyword)) || x.Tags.Any(t => t.Title.Contains(SearchQuery.Keyword)))
.ToList();
Below is the query that is executed by EF:
exec sp_executesql N'SELECT
[UnionAll1].[Id] AS [C1],
[UnionAll1].[Id1] AS [C2],
[UnionAll1].[Id2] AS [C3],
[UnionAll1].[Id3] AS [C4],
[UnionAll1].[Id4] AS [C5],
[UnionAll1].[Id5] AS [C6],
[UnionAll1].[Id6] AS [C7],
[UnionAll1].[Id7] AS [C8],
[UnionAll1].[Id8] AS [C9],
[UnionAll1].[FirstName] AS [C10],
[UnionAll1].[LastName] AS [C11],
[UnionAll1].[EnterpriseId] AS [C12],
[UnionAll1].[Level] AS [C13],
[UnionAll1].[C1] AS [C14],
[UnionAll1].[Id9] AS [C15],
[UnionAll1].[Id10] AS [C16],
[UnionAll1].[Title] AS [C17],
[UnionAll1].[CreatedDate] AS [C18],
[UnionAll1].[CreatedBy] AS [C19],
[UnionAll1].[UpdatedDate] AS [C20],
[UnionAll1].[UpdatedBy] AS [C21],
[UnionAll1].[IsDeleted] AS [C22],
[UnionAll1].[TagType_Id] AS [C23],
[UnionAll1].[ProjectExperience_Id] AS [C24],
[UnionAll1].[C2] AS [C25],
[UnionAll1].[C3] AS [C26],
[UnionAll1].[C4] AS [C27],
[UnionAll1].[C5] AS [C28],
[UnionAll1].[C6] AS [C29],
[UnionAll1].[C7] AS [C30],
[UnionAll1].[C8] AS [C31],
[UnionAll1].[C9] AS [C32],
[UnionAll1].[C10] AS [C33],
[UnionAll1].[C11] AS [C34],
[UnionAll1].[C12] AS [C35],
[UnionAll1].[C13] AS [C36],
[UnionAll1].[C14] AS [C37],
[UnionAll1].[C15] AS [C38],
[UnionAll1].[C16] AS [C39],
[UnionAll1].[C17] AS [C40]
FROM (SELECT
CASE WHEN ([Join7].[FKEmployeeCvId] IS NULL) THEN CAST(NULL AS int) ELSE 1 END AS [C1],
[Extent1].[Id] AS [Id],
[Extent2].[Id] AS [Id1],
[Extent3].[Id] AS [Id2],
[Extent4].[Id] AS [Id3],
[Extent5].[Id] AS [Id4],
[Extent6].[Id] AS [Id5],
[Extent7].[Id] AS [Id6],
[Extent1].[Id] AS [Id7],
[Extent1].[Id] AS [Id8],
[Extent4].[FirstName] AS [FirstName],
[Extent5].[LastName] AS [LastName],
[Extent6].[EnterpriseId] AS [EnterpriseId],
[Extent7].[Level] AS [Level],
[Join7].[Id] AS [Id9],
[Join7].[Id] AS [Id10],
[Join7].[Title] AS [Title],
[Join7].[CreatedDate] AS [CreatedDate],
[Join7].[CreatedBy] AS [CreatedBy],
[Join7].[UpdatedDate] AS [UpdatedDate],
[Join7].[UpdatedBy] AS [UpdatedBy],
[Join7].[IsDeleted] AS [IsDeleted],
[Join7].[TagType_Id] AS [TagType_Id],
[Join7].[ProjectExperience_Id] AS [ProjectExperience_Id],
CAST(NULL AS int) AS [C2],
CAST(NULL AS varchar(1)) AS [C3],
CAST(NULL AS int) AS [C4],
CAST(NULL AS varchar(1)) AS [C5],
CAST(NULL AS varchar(1)) AS [C6],
CAST(NULL AS datetime2) AS [C7],
CAST(NULL AS varchar(1)) AS [C8],
CAST(NULL AS datetime2) AS [C9],
CAST(NULL AS varchar(1)) AS [C10],
CAST(NULL AS bit) AS [C11],
CAST(NULL AS int) AS [C12],
CAST(NULL AS int) AS [C13],
CAST(NULL AS int) AS [C14],
CAST(NULL AS int) AS [C15],
CAST(NULL AS int) AS [C16],
CAST(NULL AS int) AS [C17]
FROM (SELECT [Var_41].[Id] AS [Id], [Var_41].[Employee_Id] AS [Employee_Id]
FROM [dbo].[EmployeeCv] AS [Var_41]
WHERE ([Var_41].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent1]
LEFT OUTER JOIN (SELECT [Var_42].[Id] AS [Id], [Var_42].[FirstName] AS [FirstName], [Var_42].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_42]
WHERE ([Var_42].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent2] ON ([Extent2].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent2].[Id])
LEFT OUTER JOIN (SELECT [Var_43].[Id] AS [Id], [Var_43].[LastName] AS [LastName], [Var_43].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_43]
WHERE ([Var_43].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent3] ON ([Extent3].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent3].[Id])
LEFT OUTER JOIN (SELECT [Var_44].[Id] AS [Id], [Var_44].[FirstName] AS [FirstName], [Var_44].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_44]
WHERE ([Var_44].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent4] ON ([Extent4].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent4].[Id])
LEFT OUTER JOIN (SELECT [Var_45].[Id] AS [Id], [Var_45].[LastName] AS [LastName], [Var_45].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_45]
WHERE ([Var_45].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent5] ON ([Extent5].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent5].[Id])
LEFT OUTER JOIN (SELECT [Var_46].[Id] AS [Id], [Var_46].[EnterpriseId] AS [EnterpriseId], [Var_46].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_46]
WHERE ([Var_46].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent6] ON ([Extent6].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent6].[Id])
LEFT OUTER JOIN (SELECT [Var_47].[Id] AS [Id], [Var_47].[Level] AS [Level], [Var_47].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_47]
WHERE ([Var_47].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent7] ON ([Extent7].[Discriminator] = N''Employee'') AND ([Extent1].[Employee_Id] = [Extent7].[Id])
LEFT OUTER JOIN (SELECT [Extent8].[FKEmployeeCvId] AS [FKEmployeeCvId], [Extent9].[Id] AS [Id], [Extent9].[Title] AS [Title], [Extent9].[CreatedDate] AS [CreatedDate], [Extent9].[CreatedBy] AS [CreatedBy], [Extent9].[UpdatedDate] AS [UpdatedDate], [Extent9].[UpdatedBy] AS [UpdatedBy], [Extent9].[IsDeleted] AS [IsDeleted], [Extent9].[TagType_Id] AS [TagType_Id], [Extent9].[ProjectExperience_Id] AS [ProjectExperience_Id]
FROM [dbo].[EmployeeTags] AS [Extent8]
INNER JOIN (SELECT [Var_48].[Id] AS [Id], [Var_48].[Title] AS [Title], [Var_48].[CreatedDate] AS [CreatedDate], [Var_48].[CreatedBy] AS [CreatedBy], [Var_48].[UpdatedDate] AS [UpdatedDate], [Var_48].[UpdatedBy] AS [UpdatedBy], [Var_48].[IsDeleted] AS [IsDeleted], [Var_48].[TagType_Id] AS [TagType_Id], [Var_48].[ProjectExperience_Id] AS [ProjectExperience_Id]
FROM [dbo].[Tag] AS [Var_48]
WHERE ([Var_48].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent9] ON [Extent9].[Id] = [Extent8].[FKTagId] ) AS [Join7] ON [Extent1].[Id] = [Join7].[FKEmployeeCvId]
WHERE (contains([Extent2].[FirstName], #p__linq__0)) OR (contains([Extent3].[LastName], #p__linq__1)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[ProjectExperience] AS [Extent10]
WHERE (([Extent10].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL)) AND ([Extent10].[Type] = N''Draft'') AND ([Extent1].[Id] = [Extent10].[EmployeeCv_Id]) AND ((contains([Extent10].[ProjectTitle], #p__linq__2)) OR (contains([Extent10].[Description], #p__linq__3)))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[EmployeeTags] AS [Extent11]
INNER JOIN (SELECT [Var_49].[Id] AS [Id], [Var_49].[Title] AS [Title]
FROM [dbo].[Tag] AS [Var_49]
WHERE ([Var_49].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent12] ON [Extent12].[Id] = [Extent11].[FKTagId]
WHERE ([Extent1].[Id] = [Extent11].[FKEmployeeCvId]) AND (contains([Extent12].[Title], #p__linq__4))
))
UNION ALL
SELECT
2 AS [C1],
[Extent13].[Id] AS [Id],
[Extent14].[Id] AS [Id1],
[Extent15].[Id] AS [Id2],
[Extent16].[Id] AS [Id3],
[Extent17].[Id] AS [Id4],
[Extent18].[Id] AS [Id5],
[Extent19].[Id] AS [Id6],
[Extent13].[Id] AS [Id7],
[Extent13].[Id] AS [Id8],
[Extent16].[FirstName] AS [FirstName],
[Extent17].[LastName] AS [LastName],
[Extent18].[EnterpriseId] AS [EnterpriseId],
[Extent19].[Level] AS [Level],
CAST(NULL AS int) AS [C2],
CAST(NULL AS int) AS [C3],
CAST(NULL AS varchar(1)) AS [C4],
CAST(NULL AS datetime2) AS [C5],
CAST(NULL AS varchar(1)) AS [C6],
CAST(NULL AS datetime2) AS [C7],
CAST(NULL AS varchar(1)) AS [C8],
CAST(NULL AS bit) AS [C9],
CAST(NULL AS int) AS [C10],
CAST(NULL AS int) AS [C11],
[Extent20].[Id] AS [Id9],
''4X0X'' AS [C12],
[Extent20].[Id] AS [Id10],
[Extent20].[ProjectTitle] AS [ProjectTitle],
[Extent20].[Description] AS [Description],
[Extent20].[CreatedDate] AS [CreatedDate],
[Extent20].[CreatedBy] AS [CreatedBy],
[Extent20].[UpdatedDate] AS [UpdatedDate],
[Extent20].[UpdatedBy] AS [UpdatedBy],
[Extent20].[IsDeleted] AS [IsDeleted],
[Extent20].[SequenceOrder] AS [SequenceOrder],
[Extent20].[EmployeeCv_Id] AS [EmployeeCv_Id],
[Extent20].[CvProfile_Id] AS [CvProfile_Id],
[Extent20].[AssociatedSchedulingProject_Id] AS [AssociatedSchedulingProject_Id],
[Extent20].[Customer_Id] AS [Customer_Id],
[Extent20].[Employee_Id] AS [Employee_Id]
FROM (SELECT [Var_50].[Id] AS [Id], [Var_50].[Employee_Id] AS [Employee_Id]
FROM [dbo].[EmployeeCv] AS [Var_50]
WHERE ([Var_50].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent13]
LEFT OUTER JOIN (SELECT [Var_51].[Id] AS [Id], [Var_51].[FirstName] AS [FirstName], [Var_51].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_51]
WHERE ([Var_51].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent14] ON ([Extent14].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent14].[Id])
LEFT OUTER JOIN (SELECT [Var_52].[Id] AS [Id], [Var_52].[LastName] AS [LastName], [Var_52].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_52]
WHERE ([Var_52].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent15] ON ([Extent15].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent15].[Id])
LEFT OUTER JOIN (SELECT [Var_53].[Id] AS [Id], [Var_53].[FirstName] AS [FirstName], [Var_53].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_53]
WHERE ([Var_53].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent16] ON ([Extent16].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent16].[Id])
LEFT OUTER JOIN (SELECT [Var_54].[Id] AS [Id], [Var_54].[LastName] AS [LastName], [Var_54].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_54]
WHERE ([Var_54].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent17] ON ([Extent17].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent17].[Id])
LEFT OUTER JOIN (SELECT [Var_55].[Id] AS [Id], [Var_55].[EnterpriseId] AS [EnterpriseId], [Var_55].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_55]
WHERE ([Var_55].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent18] ON ([Extent18].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent18].[Id])
LEFT OUTER JOIN (SELECT [Var_56].[Id] AS [Id], [Var_56].[Level] AS [Level], [Var_56].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_56]
WHERE ([Var_56].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent19] ON ([Extent19].[Discriminator] = N''Employee'') AND ([Extent13].[Employee_Id] = [Extent19].[Id])
INNER JOIN (SELECT [Var_57].[Id] AS [Id], [Var_57].[ProjectTitle] AS [ProjectTitle], [Var_57].[Description] AS [Description], [Var_57].[CreatedDate] AS [CreatedDate], [Var_57].[CreatedBy] AS [CreatedBy], [Var_57].[UpdatedDate] AS [UpdatedDate], [Var_57].[UpdatedBy] AS [UpdatedBy], [Var_57].[IsDeleted] AS [IsDeleted], [Var_57].[SequenceOrder] AS [SequenceOrder], [Var_57].[EmployeeCv_Id] AS [EmployeeCv_Id], [Var_57].[CvProfile_Id] AS [CvProfile_Id], [Var_57].[AssociatedSchedulingProject_Id] AS [AssociatedSchedulingProject_Id], [Var_57].[Customer_Id] AS [Customer_Id], [Var_57].[Employee_Id] AS [Employee_Id], [Var_57].[Type] AS [Type]
FROM [dbo].[ProjectExperience] AS [Var_57]
WHERE ([Var_57].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent20] ON ([Extent20].[Type] = N''Draft'') AND ([Extent13].[Id] = [Extent20].[EmployeeCv_Id])
WHERE (contains([Extent14].[FirstName], #p__linq__0)) OR (contains([Extent15].[LastName], #p__linq__1)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[ProjectExperience] AS [Extent21]
WHERE (([Extent21].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL)) AND ([Extent21].[Type] = N''Draft'') AND ([Extent13].[Id] = [Extent21].[EmployeeCv_Id]) AND ((contains([Extent21].[ProjectTitle], #p__linq__2)) OR (contains([Extent21].[Description], #p__linq__3)))
)) OR ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[EmployeeTags] AS [Extent22]
INNER JOIN (SELECT [Var_58].[Id] AS [Id], [Var_58].[Title] AS [Title]
FROM [dbo].[Tag] AS [Var_58]
WHERE ([Var_58].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR (#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) ) AS [Extent23] ON [Extent23].[Id] = [Extent22].[FKTagId]
WHERE ([Extent13].[Id] = [Extent22].[FKEmployeeCvId]) AND (contains([Extent23].[Title], #p__linq__4))
))) AS [UnionAll1]
ORDER BY [UnionAll1].[Id] ASC, [UnionAll1].[Id1] ASC, [UnionAll1].[Id2] ASC, [UnionAll1].[Id3] ASC, [UnionAll1].[Id4] ASC, [UnionAll1].[Id5] ASC, [UnionAll1].[Id6] ASC, [UnionAll1].[C1] ASC',N'#DynamicFilterParam_IsDeleted_IsDeleted bit,#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled bit,#p__linq__0 char(4096),#p__linq__1 char(4096),#p__linq__2 char(4096),#p__linq__3 char(4096),#p__linq__4 char(4096)',#DynamicFilterParam_IsDeleted_IsDeleted=0,#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled=NULL,#p__linq__0='(sitecore)',#p__linq__1='(sitecore)',
#p__linq__2='(sitecore)',
#p__linq__3='(sitecore) ',#p__linq__4='(sitecore) '
When I am executing this query in the SQL MS it is giving me same error.
Even though I can successfully execute the contains query directly on the table like this:
select * from Employee where contains(FirstName,'"John*"')
This Linq works:
var employeeCV = _context.Employees.Where(x => x.FirstName.Contains(SearchQuery.Keyword)).ToList();
Your problem is that you are trying to run fulltext not on from Employees table, but on a Extent2, i.e. SELECT something FROM Employees WHERE ... and it is not full-text indexed. You will have to rewrite your linq query or do it in T-SQL instead of linq.
(SELECT [Var_42].[Id] AS [Id], [Var_42].[FirstName] AS [FirstName],
[Var_42].[Discriminator] AS [Discriminator]
FROM [dbo].[Employee] AS [Var_42]
WHERE ([Var_42].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted) OR
(#DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled IS NOT NULL) )
AS [Extent2]
I suggest that you try to rewrite your linq query like this:
ListOfEmployees = from cvs in _context.EmployeeCvs.Include(x => x.Employee)
where _Context.Employees.Any(
e=>e.FirstName.Contains(SearchQuery.Keyword)
&& e.EmployeeID == cvs.EmployeeID
))
... etc
This should generate a simple EXISTS statement which should work OK.
It is better to use query syntax, because you can name your subqueries.
The reason why EF is doing this "mess" for you is because you use Dynamic filters.
[Var_58].[IsDeleted] = #DynamicFilterParam_IsDeleted_IsDeleted
If you try to disable the Dynamic filters:
_context.DisableAllFilters();
it will not help you now, since it just sets the variable #DynamicFilterParam_IsDeleted_DynamicFilterIsDisabled in the generated query, but the query still will contain [Var_xx] subqueries, because EntityFramework.DynamicFilters overrides some methods of Entity Framework. See this link.
Why do dynamic filters cause problems?
The reason is mentioned here:
When I specify additional filters on entity queries (using linq's
.Where() clause, for example), those additional filters cause EF to
create sub-tables in the query.
So Dynamic filters create subqueries and there you get your exception, it is also well described here. There is a similar workaround recommended:
The workaround I'm currently using (which seems to work) is to always
force the Full Text Index predicate into a separate sub query so the
predicate is always executed against the base table rather than an
intermediate result set.
So you should try to convert all the conditions that are using full-text indexes to separate EXISTS statements.
It looks like you have to create a full-text index in your database first, if you're using MS SQL Server - see this link https://msdn.microsoft.com/en-us/library/ms187317.aspx if you want to do this via sql statements, otherwise see this link - https://technet.microsoft.com/en-us/library/aa197912(v=sql.80).aspx - if you want to do this via UI
Can you please confirm that you have full-text indexing enabled for ALL columns that participate in Contains function
select * from Employee where contains((FirstName,LastName),'"John*"')
select * from Tag where contains(Title,'"John*"')
I end up rewriting the LINQ like this to fix the problem:
var listOfEmployeeCV = from cvs in _context.EmployeeCvs.Include(x => x.Employee).Include(x=>x.Tags)
.Include(x=>x.ProjectExperiences)
where _context.Employees.Any(
e => e.FirstName.Contains(SearchQuery.Keyword)
&& e.Id == cvs.Employee.Id
) || (_context.Tags.Any(t=>t.Title.Contains(SearchQuery.Keyword) && cvs.Tags.Contains(t)))
|| (_context.ProjectExperiences.Any(pe=>(pe.ProjectTitle.Contains(SearchQuery.Keyword)
|| pe.Description.Contains(SearchQuery.Keyword)) &&
cvs.ProjectExperiences.Contains(pe)))
select new
EmployeeCvDTO
{
Employee = new EmployeeDTO
{
FirstName = cvs.Employee.FirstName,
LastName = cvs.Employee.LastName,
EnterpriseId = cvs.Employee.EnterpriseId,
Level = cvs.Employee.Level
//ProfileImageData = x.Employee.ProfileImageData
},
Tags = cvs.Tags,
ProjectExperiences = cvs.ProjectExperiences,
};
Use raw sql through Entity Framework, it works.
rtEntities rv = new rtEntities();
string query = string.Format("SELECT FT_TBL.ID, FT_TBL.Description, KEY_TBL.RANK FROM tbl_user AS FT_TBL INNER JOIN FREETEXTTABLE(tbl_user, Description, '(free text)', 5 ) AS KEY_TBL ON FT_TBL.ID = KEY_TBL.[KEY]");
var data = rv.Database.SqlQuery<userDetails>(query).ToList();
GridView1.DataSource = data;
GridView1.DataBind();
I have a list of StudentGrades which contains TermNumber, I want to group them by TermNumber. However, when I look at the results, the ones with null TermNumbers are not returned/grouped.
IQueryable<StudentGradeDm> query = GetListQuery().Where(m => m.StudentId == studentId);
IQueryable<StudentGradeDto> groupedQuery = query.GroupBy(m => m.TermNumber)
.Select(m => new StudentGradeDto
{
TermNumber = m.Key,
StudentGrades = m.ToList()
});
return groupedQuery;
As you can see from the lovely screenshot i've taken here .. there are 3 groups, however, the first group is null because their TermNumber is null. But theoretically, who cares if its null? The StudentGrades with null TermNumber should still be a group.
I understand that one fix to this would be to call
query.ToList().GroupBy ......
But this is not an option for me, as the streamlined application will take a query such as the one above, and feed it into a generic pagination and sort function, in which only a subset of records will be fetched from the database to improve performance.
Any expert inputs would be greatly appreciated!
Update: Here is the generated SQL
{SELECT
[Project2].[C2] AS [C1],
[Project2].[C1] AS [C2],
[Project2].[C3] AS [C3],
[Project2].[Id] AS [Id],
[Project2].[StudentId] AS [StudentId],
[Project2].[Year] AS [Year],
[Project2].[TermTypeId] AS [TermTypeId],
[Project2].[TermNumber] AS [TermNumber],
[Project2].[ClassId] AS [ClassId],
[Project2].[GradeId] AS [GradeId],
[Project2].[FileId] AS [FileId],
[Project2].[CreatedById] AS [CreatedById],
[Project2].[CreatedDate] AS [CreatedDate],
[Project2].[ModifiedById] AS [ModifiedById],
[Project2].[ModifiedDate] AS [ModifiedDate],
[Project2].[Deleted] AS [Deleted]
FROM ( SELECT
[Distinct1].[C1] AS [C1],
1 AS [C2],
[Extent2].[Id] AS [Id],
[Extent2].[StudentId] AS [StudentId],
[Extent2].[Year] AS [Year],
[Extent2].[TermTypeId] AS [TermTypeId],
[Extent2].[TermNumber] AS [TermNumber],
[Extent2].[ClassId] AS [ClassId],
[Extent2].[GradeId] AS [GradeId],
[Extent2].[FileId] AS [FileId],
[Extent2].[CreatedById] AS [CreatedById],
[Extent2].[CreatedDate] AS [CreatedDate],
[Extent2].[ModifiedById] AS [ModifiedById],
[Extent2].[ModifiedDate] AS [ModifiedDate],
[Extent2].[Deleted] AS [Deleted],
CASE WHEN ([Extent2].[Id] IS NULL) THEN CAST(NULL AS int) ELSE 1 END AS [C3]
FROM (SELECT DISTINCT
[Extent1].[TermNumber] AS [C1]
FROM [dbo].[StudentGrade] AS [Extent1]
WHERE ([Extent1].[Deleted] <> 1) AND ([Extent1].[StudentId] = #p__linq__0) ) AS [Distinct1]
LEFT OUTER JOIN [dbo].[StudentGrade] AS [Extent2] ON ([Extent2].[Deleted] <> 1) AND ([Extent2].[StudentId] = #p__linq__0) AND ([Distinct1].[C1] = [Extent2].[TermNumber])
) AS [Project2]
ORDER BY [Project2].[C1] ASC, [Project2].[C3] ASC}
I know it's ain't gonna be easy but I'm stuck on this and can't move on.
I have this linq
var resourceItems = queryable
.Select(ri => new ResourceItemDto
{
Id = ri.Id,
CreationDate = ri.CreationDate,
ParentId = ri.FolderId,
Name = ri.Name,
Type = ri.ResourceType,
Url = ri.Url,
Size = ri.Size,
MediaAssetUuid = ri.MediaAssetUuid,
Blob = ri.Blob,
Container = ri.Container,
GroupId = ri.GroupId,
Status = (ResourceItemStatus) ri.Status,
Progress =
ri.EncodingJobs.SelectMany(j => j.EncodingTasks).Any()
? (ri.EncodingJobs.SelectMany(j => j.EncodingTasks).Sum(t => (decimal?) t.Progress)/
ri.EncodingJobs.SelectMany(j => j.EncodingTasks).Count() ?? 0M)
: 0M,
Uuid = ri.Uuid,
CreatedBy =
new UserDto
{
Id = ri.User.Id,
UserName = ri.User.UserName,
FirstName = ri.User.FirstName,
LastName = ri.User.LastName
}
});
And now the task is to move this into a SP and I don't want to take the sql generated by the EF, it's clumsy and machine-generated.
I ended up having this:
SELECT
ri.Id
,ri.CreationDate
,ri.FolderId
,ri.Name
,ri.ResourceType
,ri.Url
,ri.Size
,ri.MediaAssetUuid
,ri.Blob
,ri.Container
,ri.GroupId
--, (sql_expression) AS Progress
,ri.Uuid
,u.Id AS UserId
,u.UserName
,u.FirstName
,u.LastName
FROM ResourceItem ri
INNER JOIN ResourceItemsTree rit ON ri.FolderId = rit.Id
INNER JOIN [User] u ON u.Id = ri.CreatedBy
WHERE
ri.IsDeleted = CAST(0 as BIT)
Now my problem is that Progress column calculation which includes a few repeating SelectMany statements and I don't know how to do with this.
Any help is really appreciated, guys.
There's a EncodingJobs table having a FK ResourceItemId (0 to many) to the resourceItem table, and there's another table EncodingTask with a FK EncodingJobId (the same 0 to many).
This is what EF generates:
SELECT
[Project4].[Id] AS [Id],
[Project4].[CreationDate] AS [CreationDate],
[Project4].[FolderId] AS [FolderId],
[Project4].[Name] AS [Name],
[Project4].[ResourceType] AS [ResourceType],
[Project4].[Url] AS [Url],
[Project4].[Size] AS [Size],
[Project4].[MediaAssetUuid] AS [MediaAssetUuid],
[Project4].[Blob] AS [Blob],
[Project4].[Container] AS [Container],
[Project4].[GroupId] AS [GroupId],
[Project4].[Status] AS [Status],
CASE WHEN ( EXISTS (SELECT
1 AS [C1]
FROM [dbo].[EncodingJob] AS [Extent12]
INNER JOIN [dbo].[EncodingTask] AS [Extent13] ON [Extent12].[Id] = [Extent13].[JobId]
WHERE [Project4].[Id] = [Extent12].[ResourceItemId]
)) THEN CASE WHEN ([Project4].[C1] / CAST( [Project4].[C2] AS decimal(19,0)) IS NULL) THEN cast(0 as decimal(18)) ELSE [Project4].[C3] / CAST( [Project4].[C4] AS decimal(19,0)) END ELSE cast(0 as decimal(18)) END AS [C1],
[Project4].[Uuid] AS [Uuid],
[Project4].[CreatedBy] AS [CreatedBy],
[Project4].[UserName] AS [UserName],
[Project4].[FirstName] AS [FirstName],
[Project4].[LastName] AS [LastName]
FROM ( SELECT
[Project3].[Id] AS [Id],
[Project3].[FolderId] AS [FolderId],
[Project3].[Name] AS [Name],
[Project3].[ResourceType] AS [ResourceType],
[Project3].[Url] AS [Url],
[Project3].[Size] AS [Size],
[Project3].[MediaAssetUuid] AS [MediaAssetUuid],
[Project3].[Status] AS [Status],
[Project3].[CreationDate] AS [CreationDate],
[Project3].[GroupId] AS [GroupId],
[Project3].[Container] AS [Container],
[Project3].[Blob] AS [Blob],
[Project3].[Uuid] AS [Uuid],
[Project3].[CreatedBy] AS [CreatedBy],
[Project3].[UserName] AS [UserName],
[Project3].[FirstName] AS [FirstName],
[Project3].[LastName] AS [LastName],
[Project3].[C1] AS [C1],
[Project3].[C2] AS [C2],
[Project3].[C3] AS [C3],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[EncodingJob] AS [Extent10]
INNER JOIN [dbo].[EncodingTask] AS [Extent11] ON [Extent10].[Id] = [Extent11].[JobId]
WHERE [Project3].[Id] = [Extent10].[ResourceItemId]) AS [C4]
FROM ( SELECT
[Project2].[Id] AS [Id],
[Project2].[FolderId] AS [FolderId],
[Project2].[Name] AS [Name],
[Project2].[ResourceType] AS [ResourceType],
[Project2].[Url] AS [Url],
[Project2].[Size] AS [Size],
[Project2].[MediaAssetUuid] AS [MediaAssetUuid],
[Project2].[Status] AS [Status],
[Project2].[CreationDate] AS [CreationDate],
[Project2].[GroupId] AS [GroupId],
[Project2].[Container] AS [Container],
[Project2].[Blob] AS [Blob],
[Project2].[Uuid] AS [Uuid],
[Project2].[CreatedBy] AS [CreatedBy],
[Project2].[UserName] AS [UserName],
[Project2].[FirstName] AS [FirstName],
[Project2].[LastName] AS [LastName],
[Project2].[C1] AS [C1],
[Project2].[C2] AS [C2],
(SELECT
SUM([Extent9].[Progress]) AS [A1]
FROM [dbo].[EncodingJob] AS [Extent8]
INNER JOIN [dbo].[EncodingTask] AS [Extent9] ON [Extent8].[Id] = [Extent9].[JobId]
WHERE [Project2].[Id] = [Extent8].[ResourceItemId]) AS [C3]
FROM ( SELECT
[Project1].[Id] AS [Id],
[Project1].[FolderId] AS [FolderId],
[Project1].[Name] AS [Name],
[Project1].[ResourceType] AS [ResourceType],
[Project1].[Url] AS [Url],
[Project1].[Size] AS [Size],
[Project1].[MediaAssetUuid] AS [MediaAssetUuid],
[Project1].[Status] AS [Status],
[Project1].[CreationDate] AS [CreationDate],
[Project1].[GroupId] AS [GroupId],
[Project1].[Container] AS [Container],
[Project1].[Blob] AS [Blob],
[Project1].[Uuid] AS [Uuid],
[Project1].[CreatedBy] AS [CreatedBy],
[Project1].[UserName] AS [UserName],
[Project1].[FirstName] AS [FirstName],
[Project1].[LastName] AS [LastName],
[Project1].[C1] AS [C1],
(SELECT
COUNT(1) AS [A1]
FROM [dbo].[EncodingJob] AS [Extent6]
INNER JOIN [dbo].[EncodingTask] AS [Extent7] ON [Extent6].[Id] = [Extent7].[JobId]
WHERE [Project1].[Id] = [Extent6].[ResourceItemId]) AS [C2]
FROM ( SELECT
[Extent1].[Id] AS [Id],
[Extent1].[FolderId] AS [FolderId],
[Extent1].[Name] AS [Name],
[Extent1].[ResourceType] AS [ResourceType],
[Extent1].[Url] AS [Url],
[Extent1].[Size] AS [Size],
[Extent1].[MediaAssetUuid] AS [MediaAssetUuid],
[Extent1].[Status] AS [Status],
[Extent1].[CreationDate] AS [CreationDate],
[Extent1].[GroupId] AS [GroupId],
[Extent1].[Container] AS [Container],
[Extent1].[Blob] AS [Blob],
[Extent1].[Uuid] AS [Uuid],
[Extent1].[CreatedBy] AS [CreatedBy],
[Extent2].[UserName] AS [UserName],
[Extent3].[FirstName] AS [FirstName],
[Extent3].[LastName] AS [LastName],
(SELECT
SUM([Extent5].[Progress]) AS [A1]
FROM [dbo].[EncodingJob] AS [Extent4]
INNER JOIN [dbo].[EncodingTask] AS [Extent5] ON [Extent4].[Id] = [Extent5].[JobId]
WHERE [Extent1].[Id] = [Extent4].[ResourceItemId]) AS [C1]
FROM [dbo].[ResourceItem] AS [Extent1]
INNER JOIN [dbo].[User] AS [Extent2] ON [Extent1].[CreatedBy] = [Extent2].[Id]
LEFT OUTER JOIN [dbo].[User] AS [Extent3] ON [Extent1].[CreatedBy] = [Extent3].[Id]
WHERE ([Extent1].[IsDeleted] <> cast(1 as bit)) AND ([Extent1].[FolderId] = #p__linq__0)
) AS [Project1]
) AS [Project2]
) AS [Project3]
) AS [Project4]
you just need to think what you are looking for.
In this case its the total of the progress / count, grouped per resourceItem.
The following should be about right, but the IDs might need correcting!
This uses a common table expression (SQL Server) but could easily be rewritten to a subquery
;WITH prog AS
(
SELECT
ej.ResourceItemId,
SUM(et.Progress) / COUNT(*) AS totalProg
FROM EncodingJobs ej
JOIN EncodingTasks et ON ej.Id = et.EncodingJobId
GROUP BY
ej.ResourceItemId
)
SELECT
ri.Id
,ri.CreationDate
,ri.FolderId
,ri.Name
,ri.ResourceType
,ri.Url
,ri.Size
,ri.MediaAssetUuid
,ri.Blob
,ri.Container
,ri.GroupId
,ISNULL(prog.totalProg, 0) AS Progress
,ri.Uuid
,u.Id AS UserId
,u.UserName
,u.FirstName
,u.LastName
FROM ResourceItem ri
INNER JOIN ResourceItemsTree rit ON ri.FolderId = rit.Id
INNER JOIN [User] u ON u.Id = ri.CreatedBy
LEFT JOIN prog ON ri.Id = prog.ResourceItemId
WHERE
ri.IsDeleted = CAST(0 as BIT)
Well this should be something like that.
Cast the count to decimal if Progress is an integer, to avoid integer division.If not, you can avoid the cast
SELECT
ri.Id
,ri.CreationDate
,ri.FolderId
,ri.Name
,ri.ResourceType
,ri.Url
,ri.Size
,ri.MediaAssetUuid
,ri.Blob
,ri.Container
,ri.GroupId
coalesce(sum(et.Progress) / cast(count(*) as decimal(18,2)), 0) AS Progress
,ri.Uuid
,u.Id AS UserId
,u.UserName
,u.FirstName
,u.LastName
FROM ResourceItem ri
INNER JOIN ResourceItemsTree rit ON ri.FolderId = rit.Id
INNER JOIN [User] u ON u.Id = ri.CreatedBy
LEFT JOIN EncodingJob ej on ej.ResourceItemId= ri.Id
LEFT JOIN EncodingTask et on et.JobId = ej.Id
WHERE
ri.IsDeleted = 0
group by
ri.Id
,ri.CreationDate
,ri.FolderId
,ri.Name
,ri.ResourceType
,ri.Url
,ri.Size
,ri.MediaAssetUuid
,ri.Blob
,ri.Container
,ri.GroupId
,ri.Uuid
,u.Id AS UserId
,u.UserName
,u.FirstName
,u.LastName
You can attach SQL Server Profiler to my database and run the application. SQL Server Profiler will capture the SQL that is being run on the database. You can then use that SQL as a starting point for your stored procedure.
SQL Server Profiler Tutorial
In my database there is a table Question with Content and Answer. I implemented a search engine which uses this:
private Expression<Func<QuestionModel, bool>> CreatePredicate(string query, bool negate = false)
{
query = query.ToUpper();
if (IsATag(ref query))
{
return question => negate == question.Tags.Any(tag => tag.NamesCollection
.Any(translation =>
translation.Language == currentLanguage &&
translation.Translation.ToUpper().Equals(query)));
}
else if(IsSpecial(ref query))
{
return question => true;
}
else
{
return question => negate == question.Content.ToUpper().Contains(query) ||
question.Answer.ToUpper().Contains(query) ||
question.Specialization.NamesCollection.Any(trans =>
trans.Language == currentLanguage &&
trans.Translation.ToUpper().Contains(query));
}
}
Actually it supports multiple queries but this is nicely handled by PrebicateBuilder
I created some performance tests and it doesn't run very fast for 10K records (up to 30 seconds if I use 5 queries. Is there a smart way to enhance the process? Honestly I've never seen a website running so slow, so there must be something.
This is the sql generated by my query:
SELECT TOP (100)
[top].[Id] AS [Id],
[top].[Content] AS [Content],
[top].[Answer] AS [Answer],
[top].[Assessment] AS [Assessment],
[top].[State] AS [State],
[top].[AuthorId] AS [AuthorId],
[top].[AttachmentFileName] AS [AttachmentFileName],
[top].[SubmissionDate] AS [SubmissionDate],
[top].[Specialization_Id] AS [Specialization_Id],
[top].[Doctor_Id] AS [Doctor_Id]
FROM ( SELECT [Project16].[Id] AS [Id], [Project16].[Content] AS [Content], [Project16].[Answer] AS [Answer], [Project16].[Assessment] AS [Assessment], [Project16].[State] AS [State], [Project16].[AuthorId] AS [AuthorId], [Project16].[AttachmentFileName] AS [AttachmentFileName], [Project16].[SubmissionDate] AS [SubmissionDate], [Project16].[Specialization_Id] AS [Specialization_Id], [Project16].[Doctor_Id] AS [Doctor_Id]
FROM ( SELECT
[Extent1].[Id] AS [Id],
[Extent1].[Content] AS [Content],
[Extent1].[Answer] AS [Answer],
[Extent1].[Assessment] AS [Assessment],
[Extent1].[State] AS [State],
[Extent1].[AuthorId] AS [AuthorId],
[Extent1].[AttachmentFileName] AS [AttachmentFileName],
[Extent1].[SubmissionDate] AS [SubmissionDate],
[Extent1].[Specialization_Id] AS [Specialization_Id],
[Extent1].[Doctor_Id] AS [Doctor_Id]
FROM [QuestionModels] AS [Extent1]
WHERE ((#p__linq__0 = (CASE WHEN ((CHARINDEX(#p__linq__1, UPPER([Extent1].[Content]))) > 0) THEN cast(1 as bit) WHEN ( NOT ((CHARINDEX(#p__linq__1, UPPER([Extent1].[Content]))) > 0)) THEN cast(0 as bit) END)) OR ((CHARINDEX(#p__linq__2, UPPER([Extent1].[Answer]))) > 0) OR ( EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent2]
WHERE ([Extent2].[SpecializationModel_Id] IS NOT NULL) AND ([Extent1].[Specialization_Id] = [Extent2].[SpecializationModel_Id]) AND ([Extent2].[Language] = #p__linq__3) AND ((CHARINDEX(#p__linq__4, UPPER([Extent2].[Translation]))) > 0)
)) OR (#p__linq__5 = (CASE WHEN ((CHARINDEX(#p__linq__6, UPPER([Extent1].[Content]))) > 0) THEN cast(1 as bit) WHEN ( NOT ((CHARINDEX(#p__linq__6, UPPER([Extent1].[Content]))) > 0)) THEN cast(0 as bit) END)) OR ((CHARINDEX(#p__linq__7, UPPER([Extent1].[Answer]))) > 0) OR ( EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent3]
WHERE ([Extent3].[SpecializationModel_Id] IS NOT NULL) AND ([Extent1].[Specialization_Id] = [Extent3].[SpecializationModel_Id]) AND ([Extent3].[Language] = #p__linq__8) AND ((CHARINDEX(#p__linq__9, UPPER([Extent3].[Translation]))) > 0)
)) OR (#p__linq__10 = (CASE WHEN ((CHARINDEX(#p__linq__11, UPPER([Extent1].[Content]))) > 0) THEN cast(1 as bit) WHEN ( NOT ((CHARINDEX(#p__linq__11, UPPER([Extent1].[Content]))) > 0)) THEN cast(0 as bit) END)) OR ((CHARINDEX(#p__linq__12, UPPER([Extent1].[Answer]))) > 0) OR ( EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent4]
WHERE ([Extent4].[SpecializationModel_Id] IS NOT NULL) AND ([Extent1].[Specialization_Id] = [Extent4].[SpecializationModel_Id]) AND ([Extent4].[Language] = #p__linq__13) AND ((CHARINDEX(#p__linq__14, UPPER([Extent4].[Translation]))) > 0)
)) OR (#p__linq__15 = (CASE WHEN ( EXISTS (SELECT
1 AS [C1]
FROM ( SELECT
[Extent5].[TagModel_Id] AS [TagModel_Id]
FROM [TagModelQuestionModels] AS [Extent5]
WHERE [Extent1].[Id] = [Extent5].[QuestionModel_Id]
) AS [Project4]
WHERE EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent6]
WHERE ([Project4].[TagModel_Id] = [Extent6].[TagModel_Id]) AND ([Extent6].[Language] = #p__linq__16) AND ((UPPER([Extent6].[Translation])) = #p__linq__17)
)
)) THEN cast(1 as bit) WHEN ( NOT EXISTS (SELECT
1 AS [C1]
FROM ( SELECT
[Extent7].[TagModel_Id] AS [TagModel_Id]
FROM [TagModelQuestionModels] AS [Extent7]
WHERE [Extent1].[Id] = [Extent7].[QuestionModel_Id]
) AS [Project7]
WHERE EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent8]
WHERE ([Project7].[TagModel_Id] = [Extent8].[TagModel_Id]) AND ([Extent8].[Language] = #p__linq__16) AND ((UPPER([Extent8].[Translation])) = #p__linq__17)
)
)) THEN cast(0 as bit) END))) AND (#p__linq__18 = (CASE WHEN ( EXISTS (SELECT
1 AS [C1]
FROM ( SELECT
[Extent9].[TagModel_Id] AS [TagModel_Id]
FROM [TagModelQuestionModels] AS [Extent9]
WHERE [Extent1].[Id] = [Extent9].[QuestionModel_Id]
) AS [Project10]
WHERE EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent10]
WHERE ([Project10].[TagModel_Id] = [Extent10].[TagModel_Id]) AND ([Extent10].[Language] = #p__linq__19) AND ((UPPER([Extent10].[Translation])) = #p__linq__20)
)
)) THEN cast(1 as bit) WHEN ( NOT EXISTS (SELECT
1 AS [C1]
FROM ( SELECT
[Extent11].[TagModel_Id] AS [TagModel_Id]
FROM [TagModelQuestionModels] AS [Extent11]
WHERE [Extent1].[Id] = [Extent11].[QuestionModel_Id]
) AS [Project13]
WHERE EXISTS (SELECT
1 AS [C1]
FROM [TranslationModels] AS [Extent12]
WHERE ([Project13].[TagModel_Id] = [Extent12].[TagModel_Id]) AND ([Extent12].[Language] = #p__linq__19) AND ((UPPER([Extent12].[Translation])) = #p__linq__20)
)
)) THEN cast(0 as bit) END))
) AS [Project16]
ORDER BY [Project16].[SubmissionDate] ASC
OFFSET 1000 ROWS
) AS [top]
These db relations don't seem to affect performance very much. If I use a query which doesn't involve them the speed is pretty much the same.
Table full scans and twice-nested per-row subqueries will be slow. A faster approach is to arrange your database such that a query need involve only a single index seek or index range scan.
Many people who want to build a search feature use a search index of some kind. Some relational databases support a limited form of full-text search, and this may suffice for your case.
Many people prefer to use a specialized search index. Lucene is a popular engine, with Solr and Elasticsearch exposing Lucene over the network.