At 15:56 +0200 25/4/06, Barry wrote:

Hi Barry

I was wrong about its being a PHP issue: it's definitely a MySQL error. I realised I hadn't handled the error in such a way that I could see what it was, but now I have, so...

The full query, in all its hideousness (but prettied up a bit in the formatting :-) ) is:

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select count(distinct uid) as c

from aptg_guides_restricted as r, aptg_guides as g

left join guides_biography as b on b.guide_id = r.uid left join guides_interests as i on i.guide_id = r.uid left join guides_tours as t on t.guide_id = r.uid left join guides_walks as w on w.guide_id = r.uid left join guides_lectures as l on l.guide_id = r.uid

where g.guide_uid = r.uid and show_on_web = '1' and (b.biography like '%london%' or i.interests like '%london%' or t.tours like '%london%' or w.walks like '%london%' or l.lectures like '%london%')

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and the error I get back is: Unknown column 'r.uid' in 'on clause'

...but I can assure you there is definitely a 'uid' column in aptg_guides_restricted. If I take out the 'r.' from those left joins (there's no uid in any other table mentioned here) I get basically the same error: Unknown column 'uid' in 'on clause'. And if I spell out 'aptg_guides_restricted.uid' in the joins I /still/ get the error: Unknown column 'aptg_guides_restricted.uid' in 'on clause'

So what /is/ the problem here? I say again: this and /exactly/ this worked perfectly in MySQL 3.23, so there's obviously some change in syntax handling or whatever between versions.

In fact, this is a preliminary query to establish the total. If there is a total, I then run this:

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select distinct uid, firstname, lastname, year_qualified, other_qualifications, guide_driverguide, guide_photo_1

from aptg_guides_restricted as r, aptg_guides as g

left join guides_biography as b on b.guide_id = r.uid left join guides_interests as i on i.guide_id = r.uid left join guides_tours as t on t.guide_id = r.uid left join guides_walks as w on w.guide_id = r.uid left join guides_lectures as l on l.guide_id = r.uid

where g.guide_uid = r.uid and show_on_web = '1' and (b.biography like '%london%' or i.interests like '%london%' or t.tours like '%london%' or w.walks like '%london%' or l.lectures like '%london%')

order by from_unixtime(unix_timestamp(guide_last_updated)) * (rand(1569933185) + ((length(guide_photo_1) > 1) / 3)) desc

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...and if I run that directly in the SQL window in phpMyAdmin, I get the same error: Unknown column 'r.uid' in 'on clause'.

¿Qué?

I'm on a seafood diet - I see food, I eat it. -- Dolly Parton