From 49f1aa6d1b0df4ab9a5f2e8ab7876f3ebfade4f5 Mon Sep 17 00:00:00 2001
From: Mats Rydberg <mats@neotechnology.com>
Date: Wed, 1 Mar 2017 14:39:51 +0100
Subject: [PATCH] Add example for CIR-2017-173

Fixes #173
---
 cip/1.accepted/CIP2016-12-14-Constraint-syntax.adoc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/cip/1.accepted/CIP2016-12-14-Constraint-syntax.adoc b/cip/1.accepted/CIP2016-12-14-Constraint-syntax.adoc
index f2680afda1..5ba2a1a5f2 100644
--- a/cip/1.accepted/CIP2016-12-14-Constraint-syntax.adoc
+++ b/cip/1.accepted/CIP2016-12-14-Constraint-syntax.adoc
@@ -217,6 +217,14 @@ FOR (p:Programmer)
 REQUIRE p:Person
 ----
 
+.Constraint example from CIR-2017-173
+[source, cypher]
+----
+CREATE CONSTRAINT enforce_dag_unique_for_R_links
+FOR p = (a)-[:R]-(b)
+REQUIRE length(p) < 2
+----
+
 === Interaction with existing features
 
 The main interaction between the constraints and the rest of the language occurs during updating statements.