Use the same parser for maxcompute and alisa. (#2510)

pkg/parser/external/parser.go

@@ -38,13 +38,11 @@ func NewParser(dialect string) (Parser, error) {
  return newJavaParser("hive"), nil
  case "calcite":
  return newJavaParser("calcite"), nil
- case "maxcompute":
+ case "maxcompute", "alisa":
  // maxcompute is PHONY parser, java will
  // chose odps or calcite according to which
  // exists in classpath
  return newJavaParser("maxcompute"), nil
- case "alisa":
- return newJavaParser("odps"), nil
  default:
  return nil, fmt.Errorf("unrecognized dialect %s", dialect)
  }