Hi All, Just to get this out the way... *I don't believe this is a problem with the primary key or its index. *
I have a postgis datasource with approx 3 million features (road segments). Yep, lot-a-data. The rendering performance is ok & visible @ 1:50,000+ . Takes a few seconds but hey, it's a lot of data and certainly not disappointing. However, severe performance problems are seen whenever I am trying to work with anything related to attribution, such as "Open Attribute Table" or "modify the selected features or all attributes simultaneously". We're talking around 10 minutes of "*Not Responding*". Note: I have altered the QGIS "*Settings -> Options -> Data Sources -> Feature Attributes and Tables*" so that "*Show selected features*" is now the default attribute table behaviour. So *hopefully*, this doesn't attempt to load all 3million features. Can anyone offer any guidance as to what I might be able to do to track down this issue (or just fix it)? For reference, we are trying to put together a simple editor that will allow a user to browse, select (road segment) features, and edit a single text attribute value on all selected features only. Fairly simple, but the UI elements we need appear to be in a world of pain. Thanks in advance, Andrew
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