upgrade db to 5.7 (#10019)

model/version.go

@@ -13,6 +13,7 @@ import (
 // It should be maintained in chronological order with most current
 // release at the front of the list.
 var versions = []string{
+	"5.7.0",
 	"5.6.0",
 	"5.5.0",
 	"5.4.0",

store/sqlstore/upgrade.go

@@ -538,11 +538,9 @@ func UpgradeDatabaseToVersion56(sqlStore SqlStore) {
 }
 
 func UpgradeDatabaseToVersion57(sqlStore SqlStore) {
-	// TODO: Uncomment following condition when version 5.7.0 is released
-	// if shouldPerformUpgrade(sqlStore, VERSION_5_6_0, VERSION_5_7_0) {
-
-	// 	saveSchemaVersion(sqlStore, VERSION_5_7_0)
-	// }
+	if shouldPerformUpgrade(sqlStore, VERSION_5_6_0, VERSION_5_7_0) {
+		saveSchemaVersion(sqlStore, VERSION_5_7_0)
+	}
 }
 
 func UpgradeDatabaseToVersion58(sqlStore SqlStore) {