Ordering tables on FROM clause: this is a partial fix of the problem regarding tables on FROM clause when using HSQLDB (with certain orders the query execution is very slow)

git-svn-id: svn://svn.forge.objectweb.org/svnroot/spagobi/V_4.x/Server/trunk@20222 99afaf0d-6903-0410-885a-c66a8bbb5f81