[Bug] Statement Query and Exec methods can not be used with sql.Conn

qrm/db.go

@@ -13,3 +13,13 @@ type DB interface {
 	Query(query string, args ...interface{}) (*sql.Rows, error)
 	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
 }
+
+// Queryable interface for sql QueryContext method
+type Queryable interface {
+	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
+}
+
+// Executable interface for sql ExecContext method
+type Executable interface {
+	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
+}