#2149 DB2: show aliases in auto-completion

plugins/org.jkiss.dbeaver.ext.db2/src/org/jkiss/dbeaver/ext/db2/model/DB2Schema.java

@@ -255,9 +255,12 @@ public class DB2Schema extends DB2GlobalObject implements DBSSchema, DBPRefresha
     }
 
     @Override
-    public DB2TableBase getChild(@NotNull DBRProgressMonitor monitor, @NotNull String childName) throws DBException
+    public DBSObject getChild(@NotNull DBRProgressMonitor monitor, @NotNull String childName) throws DBException
     {
-        DB2TableBase child = tableCache.getObject(monitor, this, childName);
+        DBSObject child = tableCache.getObject(monitor, this, childName);
+        if (child == null) {
+            child = aliasCache.getObject(monitor, this, childName);
+        }
         if (child == null) {
             child = viewCache.getObject(monitor, this, childName);
         }