diff --git a/tests/system-test/fulltest.sh b/tests/system-test/fulltest.sh
index c383b33652d4c4a0911b585a4bdedf6738684a73..50c3259d68d3bc7fe29b5b8b7f9e4e3d701b369f 100755
--- a/tests/system-test/fulltest.sh
+++ b/tests/system-test/fulltest.sh
@@ -44,6 +44,7 @@ python3 ./test.py -f 2-query/check_tsdb.py
 python3 ./test.py -f 2-query/spread.py
 python3 ./test.py -f 2-query/hyperloglog.py
 python3 ./test.py -f 2-query/explain.py
+python3 ./test.py -f 2-query/leastsquares.py
 
 
 python3 ./test.py -f 2-query/timezone.py
@@ -80,7 +81,7 @@ python3 ./test.py -f 2-query/arccos.py
 python3 ./test.py -f 2-query/arctan.py
 python3 ./test.py -f 2-query/query_cols_tags_and_or.py
 # python3 ./test.py -f 2-query/nestedQuery.py
-# TD-15983 subquery output duplicate name column. 
+# TD-15983 subquery output duplicate name column.
 # Please Xiangyang Guo modify the following script
 # python3 ./test.py -f 2-query/nestedQuery_str.py