I have JDBC connection to a PostgreSQL database using org.postgresql.Driver.
On this database I want to left/right join 2 tables using the designer to build 
the query:

I add the two tables to the work area, drag the column from the first over the 
column of the other to create a join, then right click on the connecting line, 
click on edit and choose instead of the default type "inner join", "left join".
When I try to run the query I get:

SQL Status: 42601
ERROR: syntax error at or near "{"
  Position: 75

The query in the sql editor looks like:

SELECT "table1"."bla", "table2"."blabla" FROM { OJ "public"."table2" AS "table2" 
LEFT OUTER JOIN "public"."table1" AS "table1" ON "table2"."refid" = 
"table1"."refid" } 

Which of course is incorrect syntax. Correcting the query make is work:

SELECT "table1"."bla", "table2"."blabla" FROM ( "public"."table2" AS "table2" 
LEFT OUTER JOIN "public"."table1" AS "table1" ON "table2"."refid" = 
"table1"."refid" )