这是一个非常简单的功能,它反映了确定性.如果我编译它本机,它不再是确定性的.我如何使其原生编译和确定性？
CREATE FUNCTION [hash].[HashDelimiter2]()
RETURNS NCHAR(1)
WITH SCHEMABINDING
AS BEGIN
RETURN N';'
END
GO
/* This does indeed result in YES */
SELECT IS_DETERMINISTIC
FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_NAME = 'HashDelimiter2'
/* But then compile it native and it's no longer deterministic */
CREATE FUNCTION [hash].[HashDelimiter3]()
RETURNS NCHAR(1)
WITH NATIVE_COMPILATION,SCHEMABINDING
AS BEGIN ATOMIC WITH (
TRANSACTION ISOLATION LEVEL = SNAPSHOT,LANGUAGE = N'English'
)
RETURN N';'
END
GO
/* This results in NO */
SELECT IS_DETERMINISTIC
FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_NAME = 'HashDelimiter3'
