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-rw-r--r--demo/roundTrip.ur1
1 files changed, 1 insertions, 0 deletions
diff --git a/demo/roundTrip.ur b/demo/roundTrip.ur
index a2be8083..a0d29bf6 100644
--- a/demo/roundTrip.ur
+++ b/demo/roundTrip.ur
@@ -1,4 +1,5 @@
table channels : { Client : client, Channel : channel (string * int * float) }
+ PRIMARY KEY Client
fun writeBack v =
me <- self;