Adds substr to PostgreSQL dialect --------------------------------- Key: HHH-609 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-609 Project: Hibernate Core Issue Type: Improvement Components: core Environment: Hibernate 2/3, PostgreSQL 7.4.x/8.0.x Reporter: Michael O'Cleirigh Fix For: 3.1 beta 1 Original Estimate: 1h Remaining Estimate: 1h Currently in Hibernate 2/3 its impossible to execute the following HQL when targeting the PostgreSQL database: "select substr (a.postalCode, 1, 3) from Address a" By adding the substring to the PostgreSQL dialect this query works as desired. For some reason using this variant: "select substr (postalCode, 1, 3) from Address" causes all persistent instances from Address to be loaded (as if "from Address" had been called) For Hibernate2 the addition to the PostgreSQL dialect is: registerFunction ("substr", new StandardSQLFunction (Hibernate.STRING); For Hibernate3 the addition to the PostgreSQL dialect is: registerFunction ("substr", new StandardSQLFunction ("substr", Hibernate.STRING);