How coordinates are stored in a PostgreSQL/PostGIS database? If not adjusted manually, is it "infinite"? Or up to some digits(15?).
My question is the following: If I work in a PostGIS database with "infinite" precision how is saving a layer as a shapefile or a feature class, process it and then paste it back to the PostGIS database, is going to affect my topology checklist? (for example exactly same nodes in a line segment).
And what would you do if you were to move from PostGIS and back regarding the precision and tolerance of your layer?