More progress on db schema setup and migrations, tricky stuff

pkg/services/sqlstore/sqlsyntax/dialect.go

@@ -8,11 +8,24 @@ type Dialect interface {
 type Sqlite3 struct {
 }
 
+type Mysql struct {
+}
+
 func (db *Sqlite3) DBType() string {
 	return "sqlite3"
 }
 
+func (db *Mysql) DBType() string {
+	return "mysql"
+}
+
 func (db *Sqlite3) TableCheckSql(tableName string) (string, []interface{}) {
 	args := []interface{}{tableName}
 	return "SELECT name FROM sqlite_master WHERE type='table' and name = ?", args
 }
+
+func (db *Mysql) TableCheckSql(tableName string) (string, []interface{}) {
+	args := []interface{}{"grafana", tableName}
+	sql := "SELECT `TABLE_NAME` from `INFORMATION_SCHEMA`.`TABLES` WHERE `TABLE_SCHEMA`=? and `TABLE_NAME`=?"
+	return sql, args
+}