I need a support for CRS that was not available in PostGIS 2.5 so I looked up into the EPSG site they had simple easy straight forward insert query to add EPSG so I did that now how do I check or know that all the functions that PostGIS have will run with same accuracy as they use to work or may be I should avoid use of some specific function like [given here][1] , and all reprojection will work as required?


  [1]: https://postgis.net/docs/PostGIS_Special_Functions_Index.html