The only thing I can see is that the SQL needs to be 'built' by pydal, but I find it hard to believe it takes a whole second. Massimo might have to add context here.
-Jim On Monday, October 2, 2023 at 1:00:19 PM UTC-5 urban....@gmail.com wrote: > Sorry my bad! I mixed up the timings when editing the post. > > The slower timing is for the dal version. > Moreover the dal version is slower even if I remove the .as_list() call. > I had originally tried that. > When I get the time I'll try "debugging" it by looking at the dal.py > source. > Asking here if anyone knows an obvious reason for this that I am missing. > On Monday, October 2, 2023 at 5:53:47 PM UTC+2 Jim S wrote: > >> It's possible I'm reading this wrong (it is Monday morning), but .09s >> (DAL) is faster than 1.8s (raw SQL). >> >> Is that a typo? Or, is it my Monday-morning-brain? >> >> If your raw query is slower, could it be because you're converting to a >> dict instead of a list as in your dal query? >> >> -Jim >> >> On Monday, October 2, 2023 at 3:07:26 AM UTC-5 urban....@gmail.com wrote: >> >>> ids = tuple(m['id'] for m in relevant_models) >>> raw_q = db.executesql(""" >>> SELECT >>> * >>> FROM "table" >>> WHERE ("table".ref_id" IN {}); >>> """.format(str(ids)), as_dict=True) >>> #################### 1.8s >>> >>> ids = tuple(m['id'] for m in relevant_models) >>> dal_q = db( >>> db.table.ref_id.belongs(ids) >>> ).select(db.table.ALL).as_list() >>> ##################### 0.09s >>> *Web2Py 2.22.3* >>> >>> Why would the dal query be so much slower than the raw sql? The >>> generated sql (db._lastsql) is the same as the raw. >>> >>> -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/web2py/338e6176-abbc-4bc2-80fe-8a97d13b5637n%40googlegroups.com.