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.
>>>
>>>
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