Hi Richard,
1. have you recently upgraded or changed the RDBMS backend?
2. The SQL should be logged in the the apache error log. If it is not, then
you need to adjust settings in the log4perl that lives in the conf
directory (as far as i remember)

a




On Wed, Apr 18, 2012 at 5:29 AM, Richard Easty <[email protected]> wrote:

> Hi Guys,
>
> We have a series of BioMarts, some of which have suddenly decided to
> become case sensitive to filters. We haven't changed our BioMarts via
> MartEditor, but the databases have recently had a maintenance restart.
>
> We don't know why our previously case-insensitive searches are now case
> sensitive.
>
> To demonstrate, the previously case-insensitive biomart can be found here:
>
> http://www.knockoutmouse.org/**biomart/martview<http://www.knockoutmouse.org/biomart/martview>
>
> Please choose "IKMV Genes and Products" / "IKMC Projects / Alleles"
>
> Selecting filters and setting "Gene" / "Gene / Marker Identifiers" to
> "cbx1"; hit "Results"; returns nothing.
>
> Back to that same filter box. Change the string to "Cbx1". Hit Results. We
> get some results.
>
> If you now try a JAX BioMart, which can be found by hitting "New" in the
> same BioMart page as above. Then selecting "MGI (Jackson Laboratory US)" /
> "Genes and Genome Features" and repeating the above Gene filter by going to
> "Filters" / "Genome Filters", and selecting "Feature Symbol" in the
> dropdown, using the same symbol (cbx1), you can see this mart doesn't care
> about case.
>
> So clearly, it is something that's configurable. But we don't know where,
> or why it's suddenly changed.
>
> We are wondering if it's some database setting, perhaps returned to a
> default when the db was restarted.
>
> We don't believe the filter settings have changed (i.e. the filters
> defined via MartEditor have not changed). The MartEditor XML is in svn and
> has not been modified for 9 months.
>
> We would be really grateful for any advice on this.
>
> Perhaps you could also suggest how to enable tracing, so that we might
> have a look at the sql.
>
> Thanks in advance,
>
> Richard
>
>
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