public void TestPrefixQuery()
{
var prefixQuery = new PrefixQuery("name", "张");
var termFilter = new TermFilter("type", "common");
var q = new FilteredQuery(prefixQuery,termFilter);
var result = client.Search(index, "type" , q, 0, 5);
Assert.AreEqual(3, result.GetTotalCount());
prefixQuery = new PrefixQuery("name", "张三");
termFilter = new TermFilter("type", "common");
q = new FilteredQuery(prefixQuery, termFilter);
result = client.Search(index, "type" , q, 0, 5);
Assert.AreEqual(2, result.GetTotalCount());
}