Add longtext, medium and long blob types to MigrationIdempotencyTest
Add longtext, medium and long blob types to MigrationIdempotencyTest

gbwey/persistent,erikd/persistent,paul-rouse/persistent,bitemyapp/persistent,gbwey/persistent,creichert/persistent,plow-technologies/persistent,gbwey/persistent,yesodweb/persistent,psibi/persistent,naushadh/persistent