Add -239 from Informix to DUPLICATE_KEY_ERROR_CODES

Signed-off-by: Lukáš Kvídera <[email protected]>

Author: sgflt

spring-jdbc/src/main/java/org/springframework/jdbc/support/SQLStateSQLExceptionTranslator.java

@@ -96,6 +96,7 @@ public class SQLStateSQLExceptionTranslator extends AbstractFallbackSQLException
 			1062,  // MySQL/MariaDB
 			2601,  // MS SQL Server
 			2627,  // MS SQL Server
+			-239,  // Informix
 			-268   // Informix
 		);