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AQL vs. tags beginning with a digit

Keith Bradnam krb at sanger.ac.uk
Wed Aug 20 10:57:32 EST 2003

On 13 Aug 2003, Dave Matthews wrote:

> It's legal for tag names to begin with a number, right?  It works fine
> in all other respects but in AQL it gives a syntax error.
> E.g. at WormBase, http://www.wormbase.org/db/searches/aql_query,
> "select U from U in class UTR where exists_tag U->5_UTR" gives
> "AQL error 700 around: '_tag U->5_UTR"

Hi Dave,

It's legal as far as I know, and we have often used numbers as part of
tag names in WormBase (as your example shows with the '5_UTR' tag).

Never been aware of any querying problems though, but then I hardly ever
use AQL.  If it is a number-related problem, you could maybe check by
writing an AQL query against the '2_point' tag in the ?Rearrangement
class.  If you still get a bug, then this should be enough info for the
acedb guys to track it down (note though that Ed is on holiday at the



~  Keith Bradnam - WormBase group: http://www.wormbase.org/
~  The Wellcome Trust Sanger Institute,
~  Hinxton, Cambridge, CB10 1SA, UK.  Tel: 01223 494922

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