On 06/23/2014 10:51 AM, rohtodeveloper wrote:
Dear all，
Our application will be switched from SQL Server to PostgreSQL.
However, a few functions are not supported yet. So we decided to
extend it.
The functions are as following:
1.SQL statement support
INSERT statement without INTO keyword
DELETE statement without FROM keywork
2.Build-in function
SQUARE
CHAR
CHARINDEX
LEN
REPLICATE
SPACE
STR
STUFF
CONVERT
DATALENGTH
DATEADD
DATEDIFF
DATEPART
DAY
MONTH
YEAR
EOMONTH
GETDATE
SYSDATETIME
3.Operator
operator !< (Not Less Than)
operator !> (Not Greater Than)
operator + (String Concatenation)
4.Other
DataType support(smalldatetime,datetime,datatime2,uniqueidentifer)
Date, Time, and Timestamp Escape Sequences ODBC Scalar Functions
OCTET_LENGTH
CURRENT_DATE
CURRENT_TIME
The extended functions are almost completed but your opinion is very
important to us.
Would you please help us to review the extended source?
The attachments is the diff source.
Thank you very much.
I think this effort is fundamentally misguided. It will mean a
maintenance nightmare for you. You would be much better off migrating
your app to rid it of these SQLServerisms, especially those that require
backend changes. If you have layered your application correctly, so that
the places it calls SQL are relatively confined, then this should not be
terribly difficult. If you have not, then you have bigger problems than
these anyway.
cheers
andrew
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