diff -r 98b901d7bb95 -r bef6648e79b1 include/relpipe/writer/TypeId.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/relpipe/writer/TypeId.h	Mon Aug 13 20:30:55 2018 +0200
@@ -0,0 +1,13 @@
+#pragma once
+
+namespace relpipe {
+namespace writer {
+
+enum class TypeId {
+	BOOLEAN = 1,
+	INTEGER = 2,
+	STRING = 3,
+};
+
+}
+}
\ No newline at end of file