[Qgis-developer] Problem with the MySQL/GDAL implementation in QGIS

[Even Rouault]

A few precisions:

> 
> My current conclusions are:
> 1) the problem is likely in the implementation of MySQL/GDAL driver
> since QGIS 2.0

This should rather read : "The problem is likely the implementation of OGR 
datasource management in QGIS since QGIS XXXX"

> 2) The last version that worked fine was QGIS 1.8.
> 3) The connection string to mysql in GDAL can be limited to any
> particular table. If this is implemented in QGIS, it would be a great
> improvement for the performance.

That would be at best a workaround. The real problem is the many 
opening&closing of OGR datasources which can be rather costly depending on the 
particular OGR driver

> 
> I have big expectations from this list to finally understand why the
> described problem occurs and how it can be resolved,
> 
> Best regards,
> Pavol
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