Generate new stores with MySQL timestamp precision 6 #2598
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Under MySQL, we end up with caching issues due to timestamps by default only having 1 second precision. In recent versions of MySQL this can be increased to microsecond precision by specifying precision.
There's another PR open, #2479, which will
ALTER TABLEall existing tables to increase the precision. We haven't merged partly out of worry about how long the migration will take for existing users with large tables.This PR instead creates the table with the correct precision to begin with. This won't fix the issue for existing users, but it will for new users (and our spec suite). For existing MySQL users we can recommend they copy in and apply the migration from #2479 at their own time.