2642289 - jconn4.jar driver call to getColumnTypeName() returns NULL for datetime timestamp columns - SAP IQ

•  after upgrading client applications to using the jconn4.jar driver,  from either jconn2 or jconn3, calls to ResultSetMetaData.getColumnTypeName return NULL for datetime and timestamp columns

• SAP IQ 16.0 SP11 and above on all platforms

sybase, jconnect, connect, failure, error, jconn3.jar, jconn2.jar, upgrade, getColumnTypeName, type, incorrect, convert, convertion, CR814941, CR#814941, 814941, CR810245, CR#810245, 810245, java, program, ETL, code, exception, JZ006, JZ0TC, attempted, illegal, pair, metadata, usertype , KBA , BC-SYB-IQ , Sybase IQ , Problem