Created
October 14, 2013 13:50
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| hotels.groupBy(x => (x._1, x._2, x._4, x._5)).mapValues(x => x.map(_._3.text).mkString) | |
| => ?? | |
| hotels.groupBy{ case(hotel, star, descr, cust, email) => (hotel, star, cust, email)} | |
| .mapValues{x => x.map(_.descr.text).mkString} |
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