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out of memory problem

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Hi all,

I am running Postgres on a machine with 
4G of memory.
When I run 
dbvlm=> SELECT u.email, g.email FROM dom_user u,
dom_member m, dom_group g
andlm-> WHERE u.userid=m.userid and
m.groupid=g.groupid and g.iso_language='de' and
dbvlm-> m.type='n' limit 1000;
ERROR:  out of memory
DETAIL:  Failed on request of size 68.
dbvlm=>

The postgres settings are 
# - Memory -
                                                      
                                                      
                                              
shared_buffers = 200000         
sort_mem = 819200               
vacuum_mem = 819200             
                                                      
                                                      
                                              

Any ideea what can be done?
Thank you 
Dragos Pruteanu




	
		
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