 | IFulltext |
Group the results of this query by the given key.
Namespace: SphinxConnector.FluentApi
Assembly: SphinxConnector (in SphinxConnector.dll) Version: 6.0.0
SyntaxParameters
- keySelector ExpressionFuncTDocument, TKey
- A function to extract the key from a document.
Type Parameters
- TKey
- The type of the key returned by the function that is represented by keySelector.
Return Value
IFulltextQueryTDocumentThe current instance.
Exceptions| Exception | Condition |
|---|---|
| ArgumentNullException | Occurs when keySelector is null. |
| InvalidOperationException | Occurs when this method called more than once for query. |
Example
To group by multiple attributes, create an anonymous type with the attributes to group by:
using (IFulltextSession fulltextSession = fulltextStore.StartSession())
{
var results = fulltextSession.Query<Product>().
Match("a product").
GroupBy(p => new { p.CategoryId, p.VendorId }).
Select(p => new
{
p,
Count = Projection.Count()
}).ToList();
}
Note that grouping by multiple attributes is only supported with Sphinx 2.1.2 and above.
See Also