sql - SQL クエリが終了しない

Question

テーブルから選択するスクリプトを実行します。

SELECT *
FROM [Portfolios]
where Delisted = 0 
  and BrokerAccountId is not null 
  and ImportType = 2
GO

テーブルのスクリプト:

CREATE TABLE [dbo].[Portfolios](
    [PortfolioId] [int] IDENTITY(1,1) NOT NULL,
    [UserId] [int] NOT NULL,
    [Guid] [uniqueidentifier] ROWGUIDCOL  NOT NULL,
    [Name] [nvarchar](255) NOT NULL,
    [Notes] [nvarchar](max) NULL,
    [IsDefault] [bit] NOT NULL,
    [Cash] [money] NOT NULL,
    [CurrentCash] [money] NULL,
    [Type] [int] NULL,
    [Delisted] [bit] NOT NULL,
    [CurrencyId] [int] NOT NULL,
    [TrackCashBalanceType] [int] NULL,
    [IsDividendReinvestment] [bit] NOT NULL,
    [ItemId] [int] NULL,
    [FinancialInstitutionId] [int] NULL,
    [Configured] [bit] NULL,
    [BrokerAccountId] [int] NULL,
    [ImportType] [int] NULL,
    [PortfolioTotalValue] [money] NULL,
    [IsRequireNewCredentials] [bit] NOT NULL,
 CONSTRAINT [Portfolios_PK] PRIMARY KEY CLUSTERED 
(
    [PortfolioId] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY],
 CONSTRAINT [Portfolios_uq] UNIQUE NONCLUSTERED 
(
    [Guid] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

通常、このスクリプトは約 10 秒間実行されます。しかし、今は終了していませんが、SQL Server でクエリの実行をキャンセルすると、必要なすべてのデータが読み取られます。

クエリが終了しない理由はありますか?