IndexKeysBuilderTDocumentGeoSpatialHaystackTMember Method (ExpressionFuncTDocument, TMember)

Note: This API is now obsolete.

Sets the key name to create a geospatial haystack index on.

Namespace: MongoDB.Driver.Builders
Assembly: MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.20.0+ee01960089f28ea1b501690df5fc9f6318a70242

Syntax

Copy

[ObsoleteAttribute("GeoHaystack indexes were deprecated in server version 4.4.")]
public IndexKeysBuilder<TDocument> GeoSpatialHaystack<TMember>(
	Expression<Func<TDocument, TMember>> memberExpression
)

<ObsoleteAttribute("GeoHaystack indexes were deprecated in server version 4.4.")>
Public Function GeoSpatialHaystack(Of TMember) ( 
	memberExpression As Expression(Of Func(Of TDocument, TMember))
) As IndexKeysBuilder(Of TDocument)

[<ObsoleteAttribute("GeoHaystack indexes were deprecated in server version 4.4.")>]
member GeoSpatialHaystack : 
        memberExpression : Expression<Func<'TDocument, 'TMember>> -> IndexKeysBuilder<'TDocument>

Parameters

memberExpression: Type: System.Linq.ExpressionsExpressionFuncTDocument, TMember
The member expression.

Type Parameters

TMember: The type of the member.

Return Value

Type: IndexKeysBuilderTDocument
The builder (so method calls can be chained).

Reference

IndexKeysBuilderTDocument Class

GeoSpatialHaystack Overload

MongoDB.Driver.Builders Namespace