feat: add read only transaction

crdbx/readonly.go

@@ -0,0 +1,17 @@
+package crdbx
+
+import (
+	"github.com/gobuffalo/pop/v6"
+	"github.com/ory/x/dbal"
+	"github.com/ory/x/sqlcon"
+)
+
+// SetTransactionReadOnly sets the transaction to read only for CockroachDB.
+func SetTransactionReadOnly(c *pop.Connection) error {
+	if c.Dialect.Name() != dbal.DriverCockroachDB {
+		// Only CockroachDB supports this.
+		return nil
+	}
+
+	return sqlcon.HandleError(c.RawQuery("SET TRANSACTION READ ONLY").Exec())
+}