Updated database schema for full utf8 compatibility

store/sql_post_store.go

@@ -35,6 +35,11 @@ func NewSqlPostStore(sqlStore *SqlStore) PostStore {
 }
 
 func (s SqlPostStore) UpgradeSchemaIfNeeded() {
+
+	// These execs are for upgrading currently created databases to full utf8mb4 compliance
+	// Will be removed as seen fit for upgrading 
+	s.GetMaster().Exec("ALTER TABLE Posts charset=utf8mb4")
+	s.GetMaster().Exec("ALTER TABLE Posts MODIFY COLUMN Message varchar(4000) CHARACTER SET utf8mb4")
 }
 
 func (s SqlPostStore) CreateIndexesIfNotExists() {