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IndexKeysTDocumentGeoSpatialHaystackTMember Method (ExpressionFuncTDocument, TMember)
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: 2.0.1
Syntax
public static IndexKeysBuilder<TDocument> GeoSpatialHaystack<TMember>(
	Expression<Func<TDocument, TMember>> memberExpression
)

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).
See Also