test: only run on 18

Signed-off-by: Andres Taylor <andres@planetscale.com>

go/test/endtoend/vtgate/queries/misc/misc_test.go

@@ -294,14 +294,17 @@ func TestAnalyze(t *testing.T) {
 
 // TestAliasesInOuterJoinQueries tests that aliases work in queries that have outer join clauses.
 func TestAliasesInOuterJoinQueries(t *testing.T) {
+	version, err := cluster.GetMajorVersion("vtgate")
+	require.NoError(t, err)
+	if version != 18 {
+		t.Skip("only run on version 18")
+	}
+
 	mcmp, closer := start(t)
 	defer closer()
 
 	// Insert data into the 2 tables
 	mcmp.Exec("insert into t1(id1, id2) values (1,2), (42,5), (5, 42)")
 	mcmp.Exec("insert into tbl(id, unq_col, nonunq_col) values (1,2,3), (2,5,3), (3, 42, 2)")
-
-	if utils.BinaryIsAtVersion(18, "vtgate") {
-		mcmp.ExecWithColumnCompare("select * from t1 t left join tbl on t.id1 = 666 and t.id2 = tbl.id")
-	}
+	mcmp.ExecWithColumnCompare("select * from t1 t left join tbl on t.id1 = 666 and t.id2 = tbl.id")
 }