public String normalizeIdentifierPart(String name) {
    char start = name.charAt(0);
    char end = name.charAt(name.length() - 1);
    if ((start == '[' && end == ']') || (start == '"' && end == '"')) {
      return '`' + name.substring(1, name.length() - 1) + '`'; 
    }
    return name;
  }
Normalize identifier (single part) - convert "" [] to `` i.e.
hplsql/src/main/java/org/apache/hive/hplsql/Meta.java