I want to dissolve a layer containing 9 features and have remaining in the attribute table only the attributes associated with max area feature.

I have tried several dissolve tools within QGIS but none seem to allow this.

In the example I wish to dissolve the features into one and only have the max area (at top) associated with the layer.

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  1. Select all 9 features
  2. Toggle the Edit icon
  3. Click the Merge Selected Features tool:

    Merge selected features

  4. Select the attributes you want to remain at the end:

    Merge attributes

  5. Click OK and your features should be merged with the values you selected.

  • Is there a way to automate the process across a large dataset without having to manually enter 'feature 9' into each field? – Columbo25 Nov 25 '16 at 16:36
  • @ColinMcGuane - I'm sure you can with PostGIS (which you tagged) but I'm not very familiar with this yet... – Joseph Nov 28 '16 at 14:40
  • 1
    A work around by @PaulRamsey gis.stackexchange.com/a/162165/84182 – Columbo25 Nov 30 '16 at 14:33
  • @ColinMcGuane - Good catch! Hope that workaround works for you ;) – Joseph Nov 30 '16 at 14:36

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