The best you can do is create a dictionary

d={1:'name1', 2:'name2', 3:'name3'} #where 1,2,3 are id in tmp table

db(db.material_issue.product_id.belongs(d.keys())).select
(db.material_issue.product_id,db.material_issue.issued_qty)

for row in rows:
    print row.product_id, d[row.product_id], row.issued_qty

Massimo


On Jul 30, 5:09 am, phneoix <neo.stea...@gmail.com> wrote:
> thanks for the suggestion
>
> this is what iam trying to achieve
>
> db
> (db.material_issue.product_id==created_temporary_table.product_id).select
> (db.material_issue.product_id,created_temporary_table.name,db.material_issue.issued_qty)
>
> On Jul 29, 11:21 am, Fran <francisb...@googlemail.com> wrote:
>
> > On Jul 29, 3:14 pm, phneoix <neo.stea...@gmail.com> wrote:
>
> > > i hope iam not confusing you guys.
>
> > No, this is very clear & makes sense.
>
> > My first thought would be to merge all the lookup tables into 1 & add
> > a 'type' column, but I guess you can't do that?
>
> > Temporarytables aren't always 
> > recommended:http://www.sql-server-performance.com/articles/per/derived_temp_table...
>
> > How about doing something like using a dictionary to store 
> > thetemporarytablein:
>
> > mystorage = {}
> > lookup_tables = [endmills, gauging, etc]
> > for lookup_table in lookup_tables:
> >     rows = db(db[lookup_table].id>0).select()
> >     for row in rows:
> >         mystorage[row.product_id] = row.product_name
>
> > Then instead of doing the Join with the material issuetable, just do
> > a lookup in the dict...
>
> > F
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