On Wed, Jul 11, 2018 at 2:44 PM, David Gauthier <davegauthie...@gmail.com> wrote: > I want to load the 'highestver' column with the highest version of tcfg1-3. > > This won't work... > update tv set greatest = greatest(tcfg1,tcfg2,tcfg3) > ...because it thinks 1.0.9 is greater than 1.0.10 > > Is there a way to get this to work right ?
If you're using v10 with ICU, then you can create a custom ICU collation for this, with "natural" sort order. Something like this should work: CREATE COLLATION numeric (provider = icu, locale = 'en-u-kn-true'); See the docs -- "23.2.2.3.2. ICU collations". -- Peter Geoghegan
