Jonathan Ellis wrote:
On 8/19/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
"Jonathan Ellis" <[EMAIL PROTECTED]> wrote:
> When ordering by columns from two tables, sqlite isn't using the index
> on the first column.
>
> explain query plan SELECT *
> FROM files f, file_info fi
> WHERE f.id = fi.file_id
> ORDER BY f.name, fi.mtime;
>
>
> Is there a workaround?
Try this:
SELECT * FROM ....
ORDER BY +f.name, +fi.mtime;
Doesn't seem to help, if I've understood correctly:
explain query plan
SELECT * FROM (
SELECT *
FROM files f, file_info fi
WHERE f.id = fi.file_id)
ORDER BY name, mtime;
0|0|TABLE files AS f
1|1|TABLE file_info AS fi WITH INDEX info_by_file
(was the "+" some kind of shorthand I'm unfamiliar with?)
Yes. It tells sqlite not to use those fields as an index.
-----------------------------------------------------------------------------
To unsubscribe, send email to [EMAIL PROTECTED]
-----------------------------------------------------------------------------
