SQL fails at parse

I'm trying to setup SQL->XML in WDSC. In order to do that, I must first define 
my SQL statement. I'm doing that by typing it in directly, but when I try to 
"Parse" I receive an error. The statement has been greatly simplified but still 
fails:

select a.*,c.*

from DISTV3.BASE_ST as a
left outer join DISTV3.REL_ST_STF_1M as b
        on a.stkey=b.stkey
left outer join DISTV3.BASE_STF as c
        on b.stfkey=c.stfkey

If I eliminate the second join, it parses. Otherwise, I get "IWAW0584E: Parse 
error encountered...com.ibm.etools.ddl2xmi.DDL2XMIException: IWAS0035E The 
table: '...whole SQL statement here...' cannot be found. I googled both errors 
and got nothing.

Any ideas on what I'm doing wrong? The statement works fine in interactive SQL 
on the system.
. 
  
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