sql - 明示的なハッシュ結合を使用することの影響はありますか?

Question

ハッシュ結合を使用することで、実行時間を から800 msに短縮できました467ms。これは私のクエリです：

exec sp_executesql N';With cte as (Select peta_rn = ROW_NUMBER() OVER (ORDER BY  d.LastStatusChangedDateTime  desc )  
                                                , d.DocumentID
                                                , u.Username
                                                , it.Abbreviation AS ITypeAbbreviation
                                                , ig.Abbreviation AS IGroupAbbreviation

                                From Documents d
                                Inner Hash Join Users u on d.UserID = u.UserID Inner Join IGroupes ig on ig.IGroupID = d.IGroupID
                                Inner Hash Join ITypes it on it.ITypeID = d.ITypeID Where 1=1  ) Select cte.DocumentID, d.IsReEfiled, d.IGroupID, d.ITypeID, d.RecordingDateTime, d.CreatedByAccountID, d.JurisdictionID, 
                        d.LastStatusChangedDateTime as LastStatusChangedDateTime
                        ,  d.IDate, d.InstrumentID, d.DocumentStatusID,cte.IGroupAbbreviation, cte.Username, j.JDAbbreviation, inf.DocumentName,
                       cte.ITypeAbbreviation, d.DocumentDate, ds.Abbreviation as DocumentStatusAbbreviation,  ds.Name as DocumentStatusName,
                        ( SELECT CAST(CASE WHEN cte.DocumentID = (
                                SELECT TOP 1 doc.DocumentID
                                FROM  Documents doc
                                WHERE doc.JurisdictionID = d.JurisdictionID
                                        AND doc.DocumentStatusID = d.DocumentStatusID
                                ORDER BY LastStatusChangedDateTime) 
                            THEN 1
                            ELSE 0
                        END AS BIT)
                        ) AS CanChangeStatus ,

                        Upper((Select Top 1 Stuff( (Select ''='' + dbo.GetDocumentNameFromParamsWithPartyType(Business, FirstName, MiddleName, LastName, t.Abbreviation, NameTypeID, pt.Abbreviation, IsGrantor, IsGrantee)  From DocumentNames dn
                                Left Hash Join Titles t
                                    on dn.TitleID = t.TitleID               
                                Left Hash Join PartyTypes pt
                                    On pt.PartyTypeID = dn.PartyTypeID
                                        Where DocumentID = cte.DocumentID
                                            For XML PATH('''')),1,1,''''))) as FlatDocumentName, (SELECT COUNT(*) FROM CTE) AS TotalRecords

                        FROM cte Inner JOin Documents d ON d.DocumentID = cte.DocumentID Left Join DocumentStatuses ds On
                        d.DocumentStatusID = ds.DocumentStatusID Left Join InstrumentFiles inf On cte.DocumentID = inf.DocumentID 
                    Left Join Jurisdictions j on j.JurisdictionID = d.JurisdictionID Where 1=1 And peta_rn>@7 AND peta_rn<=@8 Order by peta_rn',N'@0 int,@1 int,@2 int,@3 int,@4 int,@5 int,@6 int,@7 int,@8 int',@0=1,@1=5,@2=9,@3=1,@4=5,@5=9,@6=1,@7=97450,@8=97500

結果セットでハッシュ結合を使用することの影響があるかどうか知りたいですか? 私には問題ないように見えますが、既存のアプリが壊れるかどうかはわかりません。