MySQL has had spatial indexes for many years, but they have all been Cartesian (X and Y coordinates) indexes. MySQL 8.0 adds support for geographic (latitude-longitude) indexes. In an earlier blog post, I described how the feature works. In this post, we’ll go into the details of how to upgrade from 5.7 to 8.0 if you have spatial indexes.…
One of the big features of MySQL 8.0 is geography support. MySQL now has a catalog of spatial reference systems (SRSs), of which almost 500 are geographic. Most functions also support geographic computations. What about indexes?
MySQL 8.0 comes with InnoDB spatial indexes for geographic data.…
In MySQL 5.7.6, we added a new feature called Generated Columns. In the initial work all Generated Columns were materialized, even virtual ones. This not only resulted in unnecessary disk space being used and disk I/O being done, but it also meant that any table alteration required that the full table be rebuilt.…