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.