maybe:

where (float(ctxt(doublecolumn)) is null and doublecolumn is not null

?



On Fri, Feb 13, 2015 at 12:37 PM, jan johansen <[email protected]>
wrote:

> Group,
>
> Because the most recent update really needs your database to do a complete
> unload and reload,
> I've come across a couple of problems (stress these are problems with my
> data).
>
> During the reload I receive numerous errors of ONE specific problem,
> COLUMN mycolumnname must be valid DOUBLE.
>
> Fine. Then I search the column and fix the data and unload again.
>
> I've searched on that column looking for stuff like a text or something
> but not really seeing a problem.
> How would I query the database looking for an invalid value in that column?
>
> Jan
>

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