[pgjdbc/pgjdbc] 4ab5cc: feat: support fetching a REF_CURSOR using getObjec...

Branch: refs/heads/master
Home: https://github.com/pgjdbc/pgjdbc
Commit: 4ab5ccb7a299cfcec8a5b1cddf612d3f828fa157
https://github.com/pgjdbc/pgjdbc/commit/4ab5ccb7a299cfcec8a5b1cddf612d3f828fa157
Author: Philippe Marschall <philippe(dot)marschall(at)gmail(dot)com>
Date: 2017-04-09 (Sun, 09 Apr 2017)

Changed paths:
M pgjdbc/src/main/java/org/postgresql/jdbc/PgCallableStatement.java
A pgjdbc/src/test/java/org/postgresql/test/jdbc42/Jdbc42CallableStatementTest.java
M pgjdbc/src/test/java/org/postgresql/test/jdbc42/Jdbc42TestSuite.java

Log Message:
-----------
feat: support fetching a REF_CURSOR using getObject

Since DatabaseMetaData#supportsRefCursors now reports true
frameworks like Hibernate now use
callableStatement.getObject(int, ResultSet.class) to fetch the
REF_CURSOR.

Only support ResultSet.class as an argument to keep the patch simple.

Closes: #794