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Negative values in string function returns error in OpenAccess SDK 8.1 while empty string in 7.0

Information

 
TitleNegative values in string function returns error in OpenAccess SDK 8.1 while empty string in 7.0
URL Namenegative-values-in-string-function-returns-error-in-openaccess-sdk-8-1-while-empty-string-in-7-0
Article Number000144535
EnvironmentProduct: OpenAccess SDK
Version: 8.1
OS: All Supported platforms
Application: All support applications
Question/Problem Description
Negative values in a string function returns error in OpenAccess SDK 8.1 while returns an empty string with v7.0
Steps to ReproduceCompile and setup the OpenAccess SDK Pass-Through mode IP

Execute the following sql query
select substring(ename, 2, -2) from emp
Clarifying Information
Error Message7.0 - Empty string is returned

8.1 error: szSqlState = "HY000", *pfNativeError = 3201, *pcbErrorMsg = 126 szErrorMsg = "[DataDirect][ODBC OpenAccess SDK driver][OpenAccess SDK Service]Unable to retrieve error message from OpenAccess SDK IP layer."
Defect Number
Enhancement Number
Cause
OpenAccess SDK 8.1 behavior is an expected behavior. 
Resolution
It was changed as part of implimentation of following enhancement in OpenAccess v8.0
OpenAccess SDK returns fixed length for scalar function results (string functions return VARCHAR(8000))
Workaround
Notes
Last Modified Date9/20/2017 6:45 PM
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