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From scwf <>
Subject [GitHub] spark pull request: [SPARK-5383][SQL] Multi alias names support
Date Sat, 24 Jan 2015 09:52:25 GMT
Github user scwf commented on the pull request:
    @rxin,  for the example `select key as (k1, k2) from src limit 5`
      k1 and k2 both are alias for `key`. And i tested with hive and HiveQL supported this,
here is test case in hive:
    select stack(2, *) as (e1,e2,e3) from (
      select concat(*), concat(a.*), concat(b.*), concat(a.*, b.key), concat(a.key, b.*)
      from src a join src b on a.key+1=b.key where a.key < 100) x limit 10;

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