Teams: Add index for permission check (#25736)

* Teams: Add indices for permission check

* Teams: Remove user_id index

pkg/services/sqlstore/migrations/team_mig.go

@@ -37,6 +37,7 @@ func addTeamMigrations(mg *Migrator) {
 		Indices: []*Index{
 			{Cols: []string{"org_id"}},
 			{Cols: []string{"org_id", "team_id", "user_id"}, Type: UniqueIndex},
+			{Cols: []string{"team_id"}},
 		},
 	}
 
@@ -45,6 +46,7 @@ func addTeamMigrations(mg *Migrator) {
 	//-------  indexes ------------------
 	mg.AddMigration("add index team_member.org_id", NewAddIndexMigration(teamMemberV1, teamMemberV1.Indices[0]))
 	mg.AddMigration("add unique index team_member_org_id_team_id_user_id", NewAddIndexMigration(teamMemberV1, teamMemberV1.Indices[1]))
+	mg.AddMigration("add index team_member.team_id", NewAddIndexMigration(teamMemberV1, teamMemberV1.Indices[2]))
 
 	// add column email
 	mg.AddMigration("Add column email to team table", NewAddColumnMigration(teamV1, &Column{