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我有一个时态表定义为：

CREATE TABLE [dbo].[MyTable](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [Name] [varchar](200) NOT NULL,
    [Description] [varchar](100) NULL,
    [CreatedOn] [datetime] NULL,
    [LastUpdatedOn] [datetime] NULL,
    [SysStartTime] [datetime2](7) GENERATED ALWAYS AS ROW START NOT NULL,
    [SysEndTime] [datetime2](7) GENERATED ALWAYS AS ROW END NOT NULL
 CONSTRAINT [PK_MyTable] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY],
    PERIOD FOR SYSTEM_TIME ([SysStartTime], [SysEndTime])
) ON [PRIMARY]
WITH
(
SYSTEM_VERSIONING = ON ( HISTORY_TABLE = [dbo].[MyTable_History] )
)

当我尝试进行这样的查询时：

SELECT * FROM MyTable FOR SYSTEM_TIME from '2020-08-18 00:00:00' to '2020-08-18 23:59:59'

我似乎也得到了不在范围内的行。例如，

Name1 Description1 2018-07-05 22:53:36.543 2020-03-17 16:25:44.707 2020-07-22 18:21:03.9662004 9999-12-31 23:59:59.9999999

2020-07-22不在范围内，但为什么会出现？

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