[Issues] Weird BiasFrame select

[Ewout M. Helmich]

Hi,

This is the intended behaviour. The select method is primarily intended 
to be used in the tasks in DBRecipes. In the cases where a calibration 
file (such as a BiasFrame) is selected, only one calibration file is 
supposed to be used, namely the most recent valid one. This is the 
object that is returned by select. For queries on raw frames or 
'science' frames a DBOracleSelect object for multiple matches is returned.

Regards,
Ewout

Jan Snigula wrote:

> Hi all,
>
> select on BiasFrames works in a strange way, doing
>
> query=BiasFrame.select(instrument='WFI',chip='ccd50')
>
> returns a <astro.main.BiasFrame.BiasFrame object at 0x2aa3f0aa10>
>
> and not a DBSelect object as expected.
>
> This happens in the latest CVS version.
>
> Cheers,
>
> Jan
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