i'm trying to populate the dataset hopefully via the addDatasetsFromDatabase function 
  
  
  
mysql query: 
  
  
  
select distinct(concat(monthname(exportDate),' ',year(exportDate))) as exportDate,  grouping, total from summary group by year(exportDate), month(exportDate), grouping 
  
  
  
exportDate|grouping|total 
  
March 2010|g1|10 
  
March 2010|g2|8 
  
March 2010|g3|21 
  
March 2010|g4|2 
  
... 
  
  
  
  
  
i'm adding March 2010 and other months via distinct(...) from another query, and i need to group g1 & g2 to the left stack, and g3 & g4 on the right stack 
  
  
  
tnx in advance. 
  
  
  
mike