diff --git a/tests_dir/people_rename.query b/tests_dir/people_rename.query
new file mode 100644
index 0000000..b2fba90
--- /dev/null
+++ b/tests_dir/people_rename.query
@@ -0,0 +1 @@
+ρ name➡n,age➡a(σTrue(people)) ∪ ρ age➡a,name➡n(people)
diff --git a/tests_dir/people_rename.result b/tests_dir/people_rename.result
new file mode 100644
index 0000000..6e4a1ba
--- /dev/null
+++ b/tests_dir/people_rename.result
@@ -0,0 +1,9 @@
+id,n,chief,a
+0,jack,0,22
+1,carl,0,20
+2,john,1,30
+3,dean,1,33
+4,eve,0,25
+5,duncan,4,30
+6,paul,4,30
+7,alia,1,28