We use them to we store our dates as integers like 20120130. This allows us to do partition pruning with ranges.
On Tue, May 29, 2012 at 4:10 AM, Aniket Mokashi <aniket...@gmail.com> wrote: > We are using non-string partition columns in production as well. > > Thanks, > Aniket > > On Sat, May 26, 2012 at 1:20 AM, Philip Tromans > <philip.j.trom...@gmail.com>wrote: > >> We're using non-string partition columns in production. I think non string >> partition columns are a good thing to have - it allows you to do all sorts >> of date range calculations etc. AFAIK, MySQL's partition columns can be of >> any type. >> >> Phil. >> On May 26, 2012 7:55 AM, "Namit Jain" <nj...@fb.com> wrote: >> >> > Should I go ahead and file a jira to disallow non-string partition >> columns >> > ? >> > Or, someone depends on that functionality. >> > >> > >> > On 5/25/12 10:01 AM, "Namit Jain" <nj...@fb.com> wrote: >> > >> > >Yes, but the meta-question is: >> > > >> > >Is anyone dependent on non-string partition columns ? Should we drop the >> > >support for non-string >> > >partition columns ? >> > > >> > > >> > >Thanks, >> > >-namit >> > > >> > >On 5/24/12 11:21 PM, "Ashutosh Chauhan" <hashut...@apache.org> wrote: >> > > >> > >>Some discussion for this has happened on >> > >>https://issues.apache.org/jira/browse/HIVE-2702 Is the underlying >> > problem >> > >>same as the one which I described on that jira ? >> > >> >> > >>Thanks, >> > >>Ashutosh >> > >> >> > >>On Thu, May 24, 2012 at 10:59 PM, Namit Jain <nj...@fb.com> wrote: >> > >> >> > >>> Should we disallow non-string partition columns completely ? >> > >>> Does anyone depend on that ? >> > >>> >> > >>> >> > >>> On 5/24/12 6:49 PM, "Namit Jain" <nj...@fb.com> wrote: >> > >>> >> > >>> > >> > >>> >http://svn.apache.org/viewvc?view=revision&revision=1308427 >> > >>> > >> > >>> >The patch above broke drop partitions if the partition happens to be >> > >>> >non-string. >> > >>> >This is due to a JDO issue with non-string columns. >> > >>> > >> > >>> >Is anyone using non-string partition columns ? >> > >>> >Should be force the partition columns to be only of type string ? >> > >>> >The documentation probably does not specify anything clearly. >> > >>> > >> > >>> >If someone is dependent on non-string partition column, we need to >> > >>>revert >> > >>> >this patch, or make a >> > >>> >special case for string partition columns. >> > >>> > >> > >>> >Thanks, >> > >>> >-namit >> > >>> > >> > >>> > >> > >>> >> > >>> >> > > >> > >> > >> > > > > -- > "...:::Aniket:::... Quetzalco@tl"