diff --git a/executor_test.go b/executor_test.go
index d1ae63cb4..4a39a7713 100644
--- a/executor_test.go
+++ b/executor_test.go
@@ -4742,6 +4742,10 @@ func TestExecutor_Execute_Rows_Keys(t *testing.T) {
 			q:   `Rows(f, previous="1", limit=0, column="0")`,
 			exp: []string{},
 		},
+		{
+			q: `Rows(f, like="__")`,
+			exp: []string{"10", "11", "12", "13", "14", "15", "16", "17", "18"},
+		},
 	}
 
 	for i, test := range tests {
@@ -5843,6 +5847,31 @@ func TestExecutor_Execute_TopNDistinct(t *testing.T) {
 	})
 }
 
+func Test_Executor_Execute_UnionRows(t *testing.T) {
+	c := test.MustRunCluster(t, 2)
+	defer c.Close()
+
+	c.CreateField(t, "i", pilosa.IndexOptions{}, "s",
+		pilosa.OptFieldTypeSet(pilosa.CacheTypeRanked, 50000),
+	)
+
+	// Populate data.
+	c.Query(t, "i", `
+			Set(0, s=1)
+			Set(1, s=2)
+			Set(2, s=3)
+			Set(3, s=1)
+			Set(3, s=5)
+		`)
+
+	if res := c.Query(t, "i", `Count(UnionRows(TopN(s, n=1)))`); res.Results[0] != uint64(2) {
+		t.Errorf("expected 2 columns, got %v", res.Results[0])
+	}
+	if res := c.Query(t, "i", `Count(UnionRows(Rows(s)))`); res.Results[0] != uint64(4) {
+		t.Errorf("expected 4 columns, got %v", res.Results[0])
+	}
+}
+
 func TestTimelessClearRegression(t *testing.T) {
 	data, err := ioutil.ReadFile("testdata/timeRegressionSchema.json")
 	if err != nil {
diff --git a/like.go b/like.go
index cb66a9d91..d3fbebe54 100644
--- a/like.go
+++ b/like.go
@@ -1,3 +1,17 @@
+// Copyright 2020 Pilosa Corp.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package pilosa
 
 import (
diff --git a/like_test.go b/like_test.go
index b6aee7c78..1382901ec 100644
--- a/like_test.go
+++ b/like_test.go
@@ -1,3 +1,17 @@
+// Copyright 2020 Pilosa Corp.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package pilosa
 
 import (