[FWTools] OGR2OGR MySQL to Shapefile Truncating Decimal Places
Frank Warmerdam
warmerdam at pobox.com
Mon Feb 23 15:31:24 EST 2009
Michael Thompson wrote:
> Hi All,
>
>
>
> I’m attempting to create a ESRI shapefile from the results of a SQL
> query on a MySQL DB using OGR2OGR included with FWTools 2.2.8. The
> operation completes without reporting any errors and the shapefile is
> created as expected, but when I load the shapefile in ArcMap all the
> floating point columns in the attribute table have no decimal places.
> If I run the query in MySQL Query Browser the results contain the
> decimal places that I expect. I’ve tried rounding the selected columns
> in the query to force the results to have a set number of decimal places
> but this does not seem to change the output.
>
> Does anyone have any ideas as to what could be causing this behavior?
> I was able to work around the problem by converting the double columns
> to chars in the query so that OGR2OGR treated them as strings, but this
> seems messy.
Michael,
I'm not sure why this would happen. If you file a detailed ticket on the
issue, I'll have Chaitanya look into it. I think I've heard of a similar
problem recently but I can't find an open ticket on the issue. Perhaps
I heard from you?
Best regards,
--
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I set the clouds in motion - turn up | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush | Geospatial Programmer for Rent
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