org.hibernate.MappingException: No Dialect mapping for JDBC type: -1 -------------------------------------------------------------------- Key: HHH-2848 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2848 Project: Hibernate3 Issue Type: Bug Environment: MySQL 5.1, Hibernate 3.2.5 Reporter: Raghuveer Rawat Priority: Blocker Original Estimate: 2 days Remaining Estimate: 2 days Create a table Demo in MySQL 5.1 and define a field TestText with Text Data Type. Now write a Native SQL for retriving table columns including this Text Column. Use below mapping in .hbm.xml <property name="testText" type="text"> <column name="TestText" length="16777215" not-null="true"> <comment></comment> </column> </property> Hibernate throws exception on execution... org.hibernate.MappingException: No Dialect mapping for JDBC type: -1 There is a similar long pending bug HHH:1483 with Low Priority but issue is very critical in nature. Looking forward for this fix asap.