I have the following code that should gets some book, and retrieve the first 2 tags (Tag entities) from that book (Book entity).
So Tags is a navigation property of the Book entity.
using (var context = new FakeEndavaBookLibraryEntities())
{
Book firstBook = context.Set<Book>().Take(1).First();
var firstTwoTags = firstBook.Tags.OrderBy(tag => tag.Id).Skip(0).Take(2).ToList();
}
I expect obtaining the following SQL query that has to be generated by EF.
SELECT TOP(2)
[Extent2].[Id] AS [Id],
[Extent2].[Version] AS [Version],
[Extent2].[Name] AS [Name]
FROM [Literature].[BookTagRelation] AS [Extent1]
INNER JOIN [Literature].[Tag] AS [Extent2]
ON [Extent1].[TagId] = [Extent2].[Id]
WHERE [Extent1].[BookId] = 1 /* @EntityKeyValue1 - [BookId] */
Instead, the EF Profiler shows me that the EF is generating unbounded result set (like SELECT * FROM ...)
SELECT [Extent2].[Id] AS [Id],
[Extent2].[Version] AS [Version],
[Extent2].[Name] AS [Name]
FROM [Literature].[BookTagRelation] AS [Extent1]
INNER JOIN [Literature].[Tag] AS [Extent2]
ON [Extent1].[TagId] = [Extent2].[Id]
WHERE [Extent1].[BookId] = 1 /* @EntityKeyValue1 - [BookId] */
Here is a scheme fragment if you need it
I also tried to append the .AsQueryable() to firstBook.Tags property and/or remove .Skip(0) method as is shown below, but this didn't help as well.
var firstTwoTags = firstBook.Tags.AsQueryable().OrderBy(tag => tag.Id).Skip(0).Take(2).ToList();
The same undesired behavior:
SELECT [Extent2].[Id] AS [Id],
[Extent2].[Version] AS [Version],
[Extent2].[Name] AS [Name]
FROM [Literature].[BookTagRelation] AS [Extent1]
INNER JOIN [Literature].[Tag] AS [Extent2]
ON [Extent1].[TagId] = [Extent2].[Id]
WHERE [Extent1].[BookId] = 1 /* @EntityKeyValue1 - [BookId] */
Have you ever encountered the same problem when working with Entity Framework 6?
Are there any workarounds to overcome this problem or I've designed the query in a wrong way...?
Thanks for any tip!