@Override
    public boolean equals(Object obj) {
      if (this == obj) {
        return true;
      }
      if (!(obj instanceof TableAliasInfo)) {
        return false;
      }
      TableAliasInfo tabAlias = (TableAliasInfo) obj;
      return StringUtils.equals(alias, tabAlias.alias)
        && (table == null ? tabAlias.table == null : table.equals(tabAlias.table));
    }
@param table the table to set
ql/src/java/org/apache/hadoop/hive/ql/hooks/LineageInfo.java