I'd actually thought I'd done a good job of laying out the question, but judging from the replies (and the wonderful 0-reputation), it's quite clear I was in error.

So in a general answer: the sql query I'm having a problem with was exactly as in the original post:

SELECT parent FROM categories WHERE id=1

I'm using the DBI error handling code, and that's what the apache logs give as the query, so it's not a matter of my not knowing what the query was. I should have made that clear.

As I said, the most puzzling part of it is that when you replace "parent" with "name" or "id", the query executes fine, and returns the respective name or id. When I copy the query directly from the error log and run it in the mysql shell, it runs fine.

As per numerous requests, here's the offending code: 

sub getParentCategory {
  my ($child) = @_;
  my $res = getDb()->selectrow_arrayref("SELECT parent FROM categories
+ WHERE id=$child");
  return $res ? $res->[0] : undef;
}

[download]

Hope this helps you help me :) And for all of you looking for me eating my own words for thinking it could possibly be a problem in the db, and not in my code - keep an eye on this node - I'll post my solution if it's ever found.

Cheers
James Beninger

In reply to Re: Unexplained MySQL Error by jbeninger
in thread Unexplained MySQL Error by jbeninger

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