SqlServerQueryableExtensions.WithApproximate<T> Method
Definition
Important
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Enables approximate nearest neighbor (ANN) search for a vector search query. This causes WITH APPROXIMATE to
be added to the SQL TOP clause, instructing SQL Server to use the vector index for better performance.
[System.Diagnostics.CodeAnalysis.Experimental("EF9105")]
public static System.Linq.IQueryable<T> WithApproximate<T>(this System.Linq.IQueryable<T> source);[<System.Diagnostics.CodeAnalysis.Experimental("EF9105")>]
static member WithApproximate : System.Linq.IQueryable<'T> -> System.Linq.IQueryable<'T><Extension()>
Public Function WithApproximate(Of T) (source As IQueryable(Of T)) As IQueryable(Of T)Type Parameters
- T
Parameters
- source
- IQueryable<T>
Returns
IQueryable<T>
- Attributes
Remarks
This method must be called after Take(...) to specify the number of results. Without WithApproximate, vector search performs an exact k-nearest neighbor (kNN) search without using the vector index.
