diff --git a/tests/develop-test/2-query/function_unique.py b/tests/develop-test/2-query/function_unique.py
index 2a666f7a7d576934f7d47bb9df2109f1d1437f9a..c8d303895700071a438546ddfb37f01cb2144c55 100644
--- a/tests/develop-test/2-query/function_unique.py
+++ b/tests/develop-test/2-query/function_unique.py
@@ -325,6 +325,7 @@ class TDTestCase:
         tdSql.query('select unique(unique.voltage) from unique, unique2 where unique.ts=unique2.ts and unique.groupid=unique2.groupid')
         tdSql.checkRows(1)
 
+        #TD-14104
         ts = 1642592221000
         sql = "insert into D004 values"
         for i in range(3000):