Jean DERAM wrote:

  

I think sql_finish_select_query should be care if the result is a 
multiple result set.
I've made a patch for cvs version (joined in this mail).
[...]
    

Thanks for the explanation. I now understand the code path that leads
to the problem. In a select query all the results are to be fetched by
sql_fetch_row(). However if there is nonsense in the database, we may
stop fetching the rows before reaching the last result of a multiple
results set.

The problem with your patch is that it may call sql_store_result()
twice on the same result. I've written a fix in the CVS, please
run a "cvs up" and test again.