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IndexKeysDefinitionBuilderTDocumentGeoHaystack Method (ExpressionFuncTDocument, Object, ExpressionFuncTDocument, Object)
Creates a geo haystack index key definition.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.1.0
Syntax
public IndexKeysDefinition<TDocument> GeoHaystack(
	Expression<Func<TDocument, Object>> field,
	Expression<Func<TDocument, Object>> additionalFieldName = null
)

Parameters

field
Type: System.Linq.ExpressionsExpressionFuncTDocument, Object
The field.
additionalFieldName (Optional)
Type: System.Linq.ExpressionsExpressionFuncTDocument, Object
Name of the additional field.

Return Value

Type: IndexKeysDefinitionTDocument
A geo haystack index key definition.
See Also