Fix migration scripts (#18756)

* Fix migration scripts

Set the DB schema version in DB prior to running migration

https://community-daily.mattermost.com/boards/workspace/zyoahc9uapdn3xdptac6jb69ic/285b80a3-257d-41f6-8cf4-ed80ca9d92e5/495cdb4d-c13a-4992-8eb9-80cfee2819a4?c=c2525dbb-23eb-4fe7-8fb4-e9a5f503dc8c

```release-note
NONE
```

* Revert schema to 6.0.0 and update CI scripts

* Fix typo

* Add missing default

* Fix extra comma

Co-authored-by: Claudio Costa <cstcld91@gmail.com>

scripts/mattermost-mysql-6.0.0.sql

@@ -71,7 +71,7 @@ CREATE TABLE `ChannelMemberHistory` (
 CREATE TABLE `ChannelMembers` (
   `ChannelId` varchar(26) NOT NULL,
   `UserId` varchar(26) NOT NULL,
-  `Roles` text DEFAULT NULL,
+  `Roles` varchar(64) DEFAULT NULL,
   `LastViewedAt` bigint(20) DEFAULT NULL,
   `MsgCount` bigint(20) DEFAULT NULL,
   `MentionCount` bigint(20) DEFAULT NULL,
@@ -106,7 +106,6 @@ CREATE TABLE `Channels` (
   `Header` text,
   `Purpose` varchar(250) DEFAULT NULL,
   `LastPostAt` bigint(20) DEFAULT NULL,
-  `LastRootPostAt` bigint(20) DEFAULT NULL,
   `TotalMsgCount` bigint(20) DEFAULT NULL,
   `ExtraUpdateAt` bigint(20) DEFAULT NULL,
   `CreatorId` varchar(26) DEFAULT NULL,
@@ -768,7 +767,7 @@ CREATE TABLE `Sessions` (
   `LastActivityAt` bigint(20) DEFAULT NULL,
   `UserId` varchar(26) DEFAULT NULL,
   `DeviceId` text,
-  `Roles` text DEFAULT NULL,
+  `Roles` varchar(64) DEFAULT NULL,
   `IsOAuth` tinyint(1) DEFAULT NULL,
   `ExpiredNotify` tinyint(1) DEFAULT NULL,
   `Props` json DEFAULT NULL,
@@ -938,7 +937,7 @@ CREATE TABLE `Systems` (
 CREATE TABLE `TeamMembers` (
   `TeamId` varchar(26) NOT NULL,
   `UserId` varchar(26) NOT NULL,
-  `Roles` text DEFAULT NULL,
+  `Roles` varchar(64) DEFAULT NULL,
   `DeleteAt` bigint(20) DEFAULT NULL,
   `SchemeUser` tinyint(4) DEFAULT NULL,
   `SchemeAdmin` tinyint(4) DEFAULT NULL,

scripts/mattermost-postgresql-6.0.0.sql

@@ -73,7 +73,7 @@ ALTER TABLE public.channelmemberhistory OWNER TO mmuser;
 CREATE TABLE public.channelmembers (
     channelid character varying(26) NOT NULL,
     userid character varying(26) NOT NULL,
-    roles character varying(256),
+    roles character varying(64),
     lastviewedat bigint,
     msgcount bigint,
     mentioncount bigint,
@@ -105,14 +105,14 @@ CREATE TABLE public.channels (
     header character varying(1024),
     purpose character varying(250),
     lastpostat bigint,
-    lastrootpostat bigint,
     totalmsgcount bigint,
     extraupdateat bigint,
     creatorid character varying(26),
     schemeid character varying(26),
     groupconstrained boolean,
     shared boolean,
-    totalmsgcountroot bigint
+    totalmsgcountroot bigint,
+    lastrootpostat bigint DEFAULT '0'::bigint
 );
 
 
@@ -676,7 +676,7 @@ CREATE TABLE public.sessions (
     lastactivityat bigint,
     userid character varying(26),
     deviceid character varying(512),
-    roles character varying(256),
+    roles character varying(64),
     isoauth boolean,
     expirednotify boolean,
     props jsonb
@@ -826,7 +826,7 @@ ALTER TABLE public.systems OWNER TO mmuser;
 CREATE TABLE public.teammembers (
     teamid character varying(26) NOT NULL,
     userid character varying(26) NOT NULL,
-    roles character varying(256),
+    roles character varying(64),
     deleteat bigint,
     schemeuser boolean,
     schemeadmin boolean,

scripts/mysql-migration-test.sh

@@ -10,6 +10,8 @@ docker exec mattermost-mysql mysql -uroot -pmostest -e "CREATE DATABASE migrated
 echo "Importing mysql dump from version ${SCHEMA_VERSION}"
 docker exec -i mattermost-mysql mysql -D migrated -uroot -pmostest < $(pwd)/scripts/mattermost-mysql-$SCHEMA_VERSION.sql
 
+docker exec -i mattermost-mysql mysql -D migrated -uroot -pmostest -e "INSERT INTO Systems (Name, Value) VALUES ('Version', '$SCHEMA_VERSION')"
+
 echo "Setting up config for db migration"
 cat config/config.json | \
     jq '.SqlSettings.DataSource = "mmuser:mostest@tcp(localhost:3306)/migrated?charset=utf8mb4,utf8&readTimeout=30s&writeTimeout=30s"' | \
@@ -26,7 +28,7 @@ cat config/config.json | \
 echo "Setting up fresh db"
 make ARGS="version --config $TMPDIR/config.json" run-cli
 
-if [ "$SCHEMA_VERSION" == "5.0" ]; then
+if [ "$SCHEMA_VERSION" == "5.0.0" ]; then
   for i in "ChannelMembers SchemeGuest" "ChannelMembers MsgCountRoot" "ChannelMembers MentionCountRoot" "Channels TotalMsgCountRoot"; do
     a=( $i );
     echo "Ignoring known MySQL mismatch: ${a[0]}.${a[1]}"

scripts/psql-migration-test.sh

@@ -10,6 +10,8 @@ docker exec mattermost-postgres sh -c 'exec echo "CREATE DATABASE migrated; CREA
 echo "Importing postgres dump from version ${SCHEMA_VERSION}"
 docker exec -i mattermost-postgres psql -U mmuser -d migrated < $(pwd)/scripts/mattermost-postgresql-$SCHEMA_VERSION.sql
 
+docker exec -i mattermost-postgres psql -U mmuser -d migrated -c "INSERT INTO Systems (Name, Value) VALUES ('Version', '$SCHEMA_VERSION')"
+
 echo "Setting up config for db migration"
 cat config/config.json | \
     jq '.SqlSettings.DataSource = "postgres://mmuser:mostest@localhost:5432/migrated?sslmode=disable&connect_timeout=10"'| \
@@ -26,7 +28,7 @@ cat config/config.json | \
 echo "Setting up fresh db"
 make ARGS="version --config $TMPDIR/config.json" run-cli
 
-if [ "$SCHEMA_VERSION" == "5.0" ]; then
+if [ "$SCHEMA_VERSION" == "5.0.0" ]; then
   for i in "ChannelMembers MentionCountRoot" "ChannelMembers MsgCountRoot" "Channels TotalMsgCountRoot"; do
     a=( $i );
     echo "Ignoring known Postgres mismatch: ${a[0]}.${a[1]}"