Fix MySQL and PostgreSQL column drop SQL (#3649)

diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index e7f3dae64638199e3bd6bcd137e404291e9c1cba..cc40bd8272c492b88d004fd53800019f1379569e 100644 (file)
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -233,7 +233,7 @@ func dropTableColumns(x *xorm.Engine, tableName string, columnNames ...string) (
                        }
                        cols += "DROP COLUMN `" + col + "`"
                }
-               if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, columnNames)); err != nil {
+               if _, err := x.Exec(fmt.Sprintf("ALTER TABLE `%s` %s", tableName, cols)); err != nil {
                        return fmt.Errorf("Drop table `%s` columns %v: %v", tableName, columnNames, err)
                }
        case setting.UseMSSQL: