Question about View in Hive 0.6

[Neil Xu]

in hive 0.6, we can create view for tables, views are actually run as a
subquery when querying data, is it optimized in hive that a view is executed
only once in a single query? Thanks in advance!
such as:
  select *
  from (
      select x,y
      from view1
      where cond1

      union all

      select x,y
      from view1
      where cond2
  )

Neil,