[Qgis-developer] table join

[Barry Rowlingson]

2009/12/1 Maurício de Paulo <mauricio.dev at gmail.com>:
> Hi,

> With the two options the user would be able to join data from the same DBMS
> with high performance and data with mixed DBMS with low, but easy,
> perfomance.
> What do you guys think?

 I think if you don't allow joining of map layers with arbitrary
tabular data sources then you'll not handle a lot of useful use cases,
such as shapefile to CSV data.

If performance is an issue in a particular case, the user could have
the option of saving the map with the joined attributes as real
attributes to a new shapefile/postgis table/ whatever.

Barry

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