hello, is it possible to have grid export data with left join and groupby 
output same like on the screen?
e.g.
def report_do():
table_header = db.do_header
table_detail_0 = db.do_product_detail
table_detail_1 = db.do_stock_detail

groupby = table_detail_1.stock
left = [table_detail_0.on(table_header.id == table_detail_0.do_no), 
table_detail_1.on(table_header.id == table_detail_1.do_no) ]
grid = SQLFORM.grid(table_header, left = left, groupby = groupby, csv = csv)
return locals()

output on screen let say it have 2 records, but the exported csv have 4 
records, because the detail table that related to table is have multiple 
product or stock. (no error occured but the result is not expected)

i've check on gluon/sqlhtml.py but don't know how to modified ExporterCSV, 
is there any hints for that?

thanks and best regards,
stifan

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