XYZ-110: Cherrypicking changes from release-4.7 to master (#8254)

* Cherry-picking 7b2861de3a09cf00d00b0872cc537d54302c4bfa to master because enterprise/master has code in it that enterprise/release-4.7 does not, and I don't want enterprise/master to break the next time somebody merges enterprise/release-4.7 to enterprise/master

* Renamed file to match existing scheme

(cherry picked from commit 8c22c5c6c6f835a6e73faf19036bad2a51bb9127)

6 files changed, 45 insertions, 32 deletions

diff --git a/app/channel_test.go b/app/channel_test.go
index d315fbae6..e4a0e4320 100644
--- a/app/channel_test.go
+++ b/app/channel_test.go
@@ -116,14 +116,14 @@ func TestJoinDefaultChannelsTownSquare(t *testing.T) {
 
 	// figure out the initial number of users in town square
 	townSquareChannelId := store.Must(th.App.Srv.Store.Channel().GetByName(th.BasicTeam.Id, "town-square", true)).(*model.Channel).Id
-	initialNumTownSquareUsers := len(store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, townSquareChannelId)).([]*model.ChannelMemberHistory))
+	initialNumTownSquareUsers := len(store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, townSquareChannelId)).([]*model.ChannelMemberHistoryResult))
 
 	// create a new user that joins the default channels
 	user := th.CreateUser()
 	th.App.JoinDefaultChannels(th.BasicTeam.Id, user, model.CHANNEL_USER_ROLE_ID, "")
 
 	// there should be a ChannelMemberHistory record for the user
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, townSquareChannelId)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, townSquareChannelId)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, initialNumTownSquareUsers+1)
 
 	found := false
@@ -142,14 +142,14 @@ func TestJoinDefaultChannelsOffTopic(t *testing.T) {
 
 	// figure out the initial number of users in off-topic
 	offTopicChannelId := store.Must(th.App.Srv.Store.Channel().GetByName(th.BasicTeam.Id, "off-topic", true)).(*model.Channel).Id
-	initialNumTownSquareUsers := len(store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, offTopicChannelId)).([]*model.ChannelMemberHistory))
+	initialNumTownSquareUsers := len(store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, offTopicChannelId)).([]*model.ChannelMemberHistoryResult))
 
 	// create a new user that joins the default channels
 	user := th.CreateUser()
 	th.App.JoinDefaultChannels(th.BasicTeam.Id, user, model.CHANNEL_USER_ROLE_ID, "")
 
 	// there should be a ChannelMemberHistory record for the user
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, offTopicChannelId)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, offTopicChannelId)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, initialNumTownSquareUsers+1)
 
 	found := false
@@ -170,7 +170,7 @@ func TestCreateChannelPublic(t *testing.T) {
 	publicChannel := th.createChannel(th.BasicTeam, model.CHANNEL_OPEN)
 
 	// there should be a ChannelMemberHistory record for the user
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, 1)
 	assert.Equal(t, th.BasicUser.Id, histories[0].UserId)
 	assert.Equal(t, publicChannel.Id, histories[0].ChannelId)
@@ -184,7 +184,7 @@ func TestCreateChannelPrivate(t *testing.T) {
 	privateChannel := th.createChannel(th.BasicTeam, model.CHANNEL_PRIVATE)
 
 	// there should be a ChannelMemberHistory record for the user
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, privateChannel.Id)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, privateChannel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, 1)
 	assert.Equal(t, th.BasicUser.Id, histories[0].UserId)
 	assert.Equal(t, privateChannel.Id, histories[0].ChannelId)
@@ -221,7 +221,7 @@ func TestCreateGroupChannel(t *testing.T) {
 		t.Fatal("Failed to create group channel. Error: " + err.Message)
 	} else {
 		// there should be a ChannelMemberHistory record for each user
-		histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, channel.Id)).([]*model.ChannelMemberHistory)
+		histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 		assert.Len(t, histories, 3)
 
 		channelMemberHistoryUserIds := make([]string, 0)
@@ -253,7 +253,7 @@ func TestAddUserToChannel(t *testing.T) {
 	}
 
 	// there should be a ChannelMemberHistory record for the user
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, channel.Id)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, 2)
 	channelMemberHistoryUserIds := make([]string, 0)
 	for _, history := range histories {
@@ -269,7 +269,7 @@ func TestRemoveUserFromChannel(t *testing.T) {
 
 	// a user creates a channel
 	publicChannel := th.createChannel(th.BasicTeam, model.CHANNEL_OPEN)
-	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistory)
+	histories := store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, 1)
 	assert.Equal(t, th.BasicUser.Id, histories[0].UserId)
 	assert.Equal(t, publicChannel.Id, histories[0].ChannelId)
@@ -279,7 +279,7 @@ func TestRemoveUserFromChannel(t *testing.T) {
 	if err := th.App.LeaveChannel(publicChannel.Id, th.BasicUser.Id); err != nil {
 		t.Fatal("Failed to remove user from channel. Error: " + err.Message)
 	}
-	histories = store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistory)
+	histories = store.Must(th.App.Srv.Store.ChannelMemberHistory().GetUsersInChannelDuring(model.GetMillis()-100, model.GetMillis()+100, publicChannel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, histories, 1)
 	assert.Equal(t, th.BasicUser.Id, histories[0].UserId)
 	assert.Equal(t, publicChannel.Id, histories[0].ChannelId)
diff --git a/model/channel_member_history.go b/model/channel_member_history.go
index 47c59d54e..55435c320 100644
--- a/model/channel_member_history.go
+++ b/model/channel_member_history.go
@@ -8,8 +8,4 @@ type ChannelMemberHistory struct {
 	UserId    string
 	JoinTime  int64
 	LeaveTime *int64
-
-	// these two fields are never set in the database - when we SELECT, we join on Users to get them
-	UserEmail string `db:"Email"`
-	Username  string
 }
diff --git a/model/channel_member_history_result.go b/model/channel_member_history_result.go
new file mode 100644
index 000000000..ed3e79639
--- /dev/null
+++ b/model/channel_member_history_result.go
@@ -0,0 +1,15 @@
+// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+package model
+
+type ChannelMemberHistoryResult struct {
+	ChannelId string
+	UserId    string
+	JoinTime  int64
+	LeaveTime *int64
+
+	// these two fields are never set in the database - when we SELECT, we join on Users to get them
+	UserEmail string `db:"Email"`
+	Username  string
+}
diff --git a/store/sqlstore/channel_member_history_store.go b/store/sqlstore/channel_member_history_store.go
index 0b86aac28..6fc78b514 100644
--- a/store/sqlstore/channel_member_history_store.go
+++ b/store/sqlstore/channel_member_history_store.go
@@ -106,7 +106,7 @@ func (s SqlChannelMemberHistoryStore) hasDataAtOrBefore(time int64) (bool, error
 	}
 }
 
-func (s SqlChannelMemberHistoryStore) getFromChannelMemberHistoryTable(startTime int64, endTime int64, channelId string) ([]*model.ChannelMemberHistory, error) {
+func (s SqlChannelMemberHistoryStore) getFromChannelMemberHistoryTable(startTime int64, endTime int64, channelId string) ([]*model.ChannelMemberHistoryResult, error) {
 	query := `
 			SELECT
 				cmh.*,
@@ -120,7 +120,7 @@ func (s SqlChannelMemberHistoryStore) getFromChannelMemberHistoryTable(startTime
 			ORDER BY cmh.JoinTime ASC`
 
 	params := map[string]interface{}{"ChannelId": channelId, "StartTime": startTime, "EndTime": endTime}
-	var histories []*model.ChannelMemberHistory
+	var histories []*model.ChannelMemberHistoryResult
 	if _, err := s.GetReplica().Select(&histories, query, params); err != nil {
 		return nil, err
 	} else {
@@ -128,7 +128,7 @@ func (s SqlChannelMemberHistoryStore) getFromChannelMemberHistoryTable(startTime
 	}
 }
 
-func (s SqlChannelMemberHistoryStore) getFromChannelMembersTable(startTime int64, endTime int64, channelId string) ([]*model.ChannelMemberHistory, error) {
+func (s SqlChannelMemberHistoryStore) getFromChannelMembersTable(startTime int64, endTime int64, channelId string) ([]*model.ChannelMemberHistoryResult, error) {
 	query := `
 		SELECT DISTINCT
 			ch.ChannelId,
@@ -140,7 +140,7 @@ func (s SqlChannelMemberHistoryStore) getFromChannelMembersTable(startTime int64
 		WHERE ch.ChannelId = :ChannelId`
 
 	params := map[string]interface{}{"ChannelId": channelId}
-	var histories []*model.ChannelMemberHistory
+	var histories []*model.ChannelMemberHistoryResult
 	if _, err := s.GetReplica().Select(&histories, query, params); err != nil {
 		return nil, err
 	} else {
diff --git a/store/sqlstore/upgrade.go b/store/sqlstore/upgrade.go
index 56fdf9d6c..09f2c9160 100644
--- a/store/sqlstore/upgrade.go
+++ b/store/sqlstore/upgrade.go
@@ -346,6 +346,8 @@ func UpgradeDatabaseToVersion47(sqlStore SqlStore) {
 	if shouldPerformUpgrade(sqlStore, VERSION_4_6_0, VERSION_4_7_0) {
 		sqlStore.AlterColumnTypeIfExists("Users", "Position", "varchar(128)", "varchar(128)")
 		sqlStore.AlterColumnTypeIfExists("OAuthAuthData", "State", "varchar(1024)", "varchar(1024)")
+		sqlStore.RemoveColumnIfExists("ChannelMemberHistory", "Email")
+		sqlStore.RemoveColumnIfExists("ChannelMemberHistory", "Username")
 		saveSchemaVersion(sqlStore, VERSION_4_7_0)
 	}
 }
diff --git a/store/storetest/channel_member_history_store.go b/store/storetest/channel_member_history_store.go
index fa2e7a8fa..b79e84fd8 100644
--- a/store/storetest/channel_member_history_store.go
+++ b/store/storetest/channel_member_history_store.go
@@ -102,11 +102,11 @@ func testGetUsersInChannelAtChannelMemberHistory(t *testing.T, ss store.Store) {
 	store.Must(ss.ChannelMemberHistory().LogJoinEvent(user.Id, channel.Id, joinTime))
 
 	// case 1: user joins and leaves the channel before the export period begins
-	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-500, joinTime-100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-500, joinTime-100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 0)
 
 	// case 2: user joins the channel after the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -116,7 +116,7 @@ func testGetUsersInChannelAtChannelMemberHistory(t *testing.T, ss store.Store) {
 	assert.Nil(t, channelMembers[0].LeaveTime)
 
 	// case 3: user joins the channel before the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -129,7 +129,7 @@ func testGetUsersInChannelAtChannelMemberHistory(t *testing.T, ss store.Store) {
 	store.Must(ss.ChannelMemberHistory().LogLeaveEvent(user.Id, channel.Id, leaveTime))
 
 	// case 4: user joins the channel before the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, leaveTime-100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, leaveTime-100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -139,7 +139,7 @@ func testGetUsersInChannelAtChannelMemberHistory(t *testing.T, ss store.Store) {
 	assert.Equal(t, leaveTime, *channelMembers[0].LeaveTime)
 
 	// case 5: user joins the channel after the export period begins, and leaves the channel before the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, leaveTime+100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, leaveTime+100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -149,7 +149,7 @@ func testGetUsersInChannelAtChannelMemberHistory(t *testing.T, ss store.Store) {
 	assert.Equal(t, leaveTime, *channelMembers[0].LeaveTime)
 
 	// case 6: user has joined and left the channel long before the export period begins
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(leaveTime+100, leaveTime+200, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(leaveTime+100, leaveTime+200, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 0)
 }
 
@@ -195,7 +195,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	// the past, even though the time that they were actually in the channel doesn't necessarily overlap with the export period
 
 	// case 1: user joins and leaves the channel before the export period begins
-	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-500, joinTime-100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-500, joinTime-100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -205,7 +205,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	assert.Equal(t, joinTime-100, *channelMembers[0].LeaveTime)
 
 	// case 2: user joins the channel after the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -215,7 +215,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	assert.Equal(t, joinTime+500, *channelMembers[0].LeaveTime)
 
 	// case 3: user joins the channel before the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, joinTime+500, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -225,7 +225,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	assert.Equal(t, joinTime+500, *channelMembers[0].LeaveTime)
 
 	// case 4: user joins the channel before the export period begins, but has not yet left the channel when the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, leaveTime-100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+100, leaveTime-100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -235,7 +235,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	assert.Equal(t, leaveTime-100, *channelMembers[0].LeaveTime)
 
 	// case 5: user joins the channel after the export period begins, and leaves the channel before the export period ends
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, leaveTime+100, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime-100, leaveTime+100, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -245,7 +245,7 @@ func testGetUsersInChannelAtChannelMembers(t *testing.T, ss store.Store) {
 	assert.Equal(t, leaveTime+100, *channelMembers[0].LeaveTime)
 
 	// case 6: user has joined and left the channel long before the export period begins
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(leaveTime+100, leaveTime+200, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(leaveTime+100, leaveTime+200, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, channel.Id, channelMembers[0].ChannelId)
 	assert.Equal(t, user.Id, channelMembers[0].UserId)
@@ -290,7 +290,7 @@ func testPermanentDeleteBatch(t *testing.T, ss store.Store) {
 	store.Must(ss.ChannelMemberHistory().LogJoinEvent(user2.Id, channel.Id, joinTime))
 
 	// in between the join time and the leave time, both users were members of the channel
-	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+10, leaveTime-10, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers := store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+10, leaveTime-10, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 2)
 
 	// the permanent delete should delete at least one record
@@ -298,7 +298,7 @@ func testPermanentDeleteBatch(t *testing.T, ss store.Store) {
 	assert.NotEqual(t, int64(0), rowsDeleted)
 
 	// after the delete, there should be one less member in the channel
-	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+10, leaveTime-10, channel.Id)).([]*model.ChannelMemberHistory)
+	channelMembers = store.Must(ss.ChannelMemberHistory().GetUsersInChannelDuring(joinTime+10, leaveTime-10, channel.Id)).([]*model.ChannelMemberHistoryResult)
 	assert.Len(t, channelMembers, 1)
 	assert.Equal(t, user2.Id, channelMembers[0].UserId)
 }