Views are logical . The view is compiled and has no penalty over the standard query.
On Tuesday, August 20, 2013, Ricky Saltzer <ri...@cloudera.com> wrote: > Since this bug was in Impala's query planner, I'm sure Hive is unaffected. > > On Aug 20, 2013 10:15 PM, "Stephen Boesch" <java...@gmail.com> wrote: >> >> Thanks v much Ricky. Is this fixed in hive 0.11 - or going to be later i.e. 0.12? >> >> 2013/8/20 Ricky Saltzer <ri...@cloudera.com> >>> >>> Although this is already fixed in the next and upcoming impala release, you might want to be aware of the following view limitation. >>> >>> https://issues.cloudera.org/browse/IMPALA-495 >>> >>> On Aug 20, 2013 7:16 PM, "Stephen Boesch" <java...@gmail.com> wrote: >>>> >>>> Views should theoretically not incur performance penalties: they simply represent queries. Are there situtions that things are "not that simple" - i.e. views may actually result in different exeucution plans than the underlying sql? >>>> Additionally, are there views-related bugs that we should be aware of that would limit the occasions that we could use them? >>>> Thanks for the pointers. >>>> >> >
