”— title: ‘Spatial Indexes’ layout: post tags: [] category: Uncategoried —
QGIS has the ability to create spatial indexes but the documentation only makes one opaque reference to what that means; ""A spatial index makes your spatial queries much faster"".
Dragons8mycat has a nice annecdote which makes it clearer. https://dragons8mycat.com/2015/05/12/why-spatial-indexes-are-really-important
and a few more sites
https://woostuff.wordpress.com/2013/01/04/using-a-qgis-spatial-index-to-speed-up-your-code/
https://subscription.packtpub.com/book/application_development/9781784398682/4/ch04lvl1sec37/creating-spatial-indices
https://courses.spatialthoughts.com/advanced-qgis.html#spatial-indexing
<a href=""https://dragons8mycat.com/2015/05/12/why-spatial-indexes-are-really-important/"">Short story on a quite extreme example</a>
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