[ensembl-dev] Case-Sensitivity in Ensembl MySQL

[Andreas Kusalananda Kähäri]

As far as I'm aware, all tables in the Core schema are explicitly
defined using

  COLLATE=latin1_swedish_ci

and the "ci" means "case insensitive".  So all string matches will be
case insensitive.


Cheers,
A

On Thu, Jul 26, 2012 at 03:49:17PM +0100, PATERSON Trevor wrote:
> Could I get some information about whether case-sensitivity is ever used in Ensembl tables and queries?
> 
> As far as I can discover none of the queries in the Perl API enforce case sensitivity by specifying a COLLATION,
> 
> (i.e. if I grep the modules for occurrences of 'COLLATE')
> 
> .. so are all columns, in all tables  of  the schema treated as case-insensitive?
> 
> Or are there any particular columns specified as case-sensitive?
> 
> Until today I was blissfully unaware that MySQL's default behaviour for non-binary string searches is to be case-insensitive.
> 
> cheers
> 
> trevor
> 
> Trevor Paterson PhD
> trevor.paterson at roslin.ed.ac.uk<mailto:trevor.paterson at roslin.ed.ac.uk>
> Bioinformatics
> The Roslin Institute
> Royal (Dick) School of Veterinary Studies
> University of Edinburgh
> Easter Bush
> Midlothian
> EH25 9RG
> Scotland UK
> 
> phone +44 (0)131 651 9157
> 
> http://bioinformatics.roslin.ed.ac.uk/
> 
> Please consider the environment before printing this e-mail
> The University of Edinburgh is a charitable body, registered in Scotland with registration number SC005336
> Disclaimer:This e-mail and any attachments are confidential and intended solely for the use of the recipient(s) to whom they are addressed. If you have received it in error, please destroy all copies and inform the sender.
> 

> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.

> _______________________________________________
> Dev mailing list    Dev at ensembl.org
> List admin (including subscribe/unsubscribe): http://lists.ensembl.org/mailman/listinfo/dev
> Ensembl Blog: http://www.ensembl.info/


-- 
Andreas Kusalananda Kähäri
Ensembl Gene Annotation Team

Sent from the tips of my fingers