[Qgis-user] Fill-down with QGIS expressions

[Totò]

I have a CSV file [0], how to get the "zona_fill" field?
The "zona_fill" field is the result of the fill-down of the "zona" column.

I could use various tools external to QGIS, but it would be useful to be
able to do this with field calc expressions;

does anyone have any ideas on how to make it? or would it be a good idea to
make a function that does the fill-down?

<http://osgeo-org.1560.x6.nabble.com/file/t378656/fill_down.png> 

[0] https://gist.github.com/pigreco/2a90c61456a16dcbf2e49e872c6b9dfa



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