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| 16:33.50 | shaunm | when I pass a Select object in the tuple of the first argument to store.find, the resultant sql is invalid |
| 16:33.58 | shaunm | is this not the right way to return subselect results? |
| 16:37.26 | jkakar | shaunm: Nope, it isn't. |
| 16:37.34 | jkakar | shaunm: What query do you want to execute? |
| 16:38.03 | jkakar | shaunm: The typical thing is usually to do something like: store.find(MyObject, MyObject.id.is_in(my_subselect)) |
| 16:38.29 | shaunm | but that's not at all what I want |
| 16:38.43 | shaunm | I don't want to test against the results of a subselect. I want the result of the subselect |
| 16:38.52 | shaunm | which is a SELECT COUNT(*) |
| 16:41.00 | shaunm | select Branch.ident, (select count(*) from Branch as foo where foo.parent_ident = Branch.ident) where ....; |
| 16:41.50 | jkakar | shaunm: Ah, I see, interesting. |
| 16:42.18 | jkakar | shaunm: Uhm, have you tried: store.find((Branch.ident, Count(subselect))) |
| 16:43.00 | jkakar | shaunm: Count is in storm.expr. |
| 16:43.09 | jkakar | I'm not sure that'll work... |
| 16:44.38 | shaunm | hmm, I was putting Count in Select. I'll try it that way |
| 16:47.32 | shaunm | hmm, sql seems valid now, though I'm not getting any results. I might have screwed something else up |
| 16:56.19 | jkakar | :) |
| 16:56.53 | jkakar | shaunm: In case you don't know about it, from storm.tracer import debug; debug(True) is very handy for seeing the queries Storm is generating. |
| 16:59.09 | shaunm | jkakar: yeah, I've actually got my own custom tracer in this project |
| 16:59.23 | shaunm | that's how I'm seeing the sql |
| 17:00.18 | shaunm | hum, the sql that gets generated for Count(Select(...)) doesn't do the right thing |
| 17:06.08 | jkakar | shaunm: Yeah, I guess I'm not too surprised. Hmm. |
| 17:37.10 | shaunm | ah hah, figured it out. had to do it in a fairly different way |
| 17:37.35 | shaunm | found a similar question answered by jamesh on the list back in march 2009 |
| 17:40.47 | jkakar | shaunm: Oh cool, what does it look like? |
| 17:45.58 | shaunm | store.find((cls, Count(tbl.ident)), tbl.parent_ident == cls.ident, ...).group_by(cls.ident) |
| 17:48.08 | shaunm | though the sql it generates is slower than the other, by about .3s |
| 17:57.27 | jkakar | shaunm: Hmm, that's annoying. There must be a way to generate the query you want with Storm. |
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