To do a clean sweep you really need a 'order of magnitude' type of justification ... some benefit that completely justifies the risk and time of changing platfo

To do a clean sweep you really need a 'order of magnitude' type of justification ... some benefit that completely justifies the risk and time of changing platforms. Postgres does a lot of things better than Mysql, but unless you have a really unique data problem to solve (perhaps say a robust spatial database) it's hard to switch midstream.