If you set up your data in directories like the log data in the Querying Directories example on http://drill.apache.org/docs/querying-directories, which uses WHERE dir0='2013' LIMIT 10 in the query, and you are having intermittent Table Not Found results, look for hidden files in the directory you are querying. The files must be compatible--they must have comparable data types and columns in the same order. Hidden files that do not have comparable data types can cause a Table Not Found error. Kristine Hahn Sr. Technical Writer 415-497-8107 @krishahn skype:krishahn
On Sun, Aug 23, 2015 at 9:01 AM, USC <hsua...@usc.edu> wrote: > Hi Sungwook, > In your where clause, you only need to say year=2012. > > The directory column (e.g., dir0) is used when users query a directory. > > >> On Aug 23, 2015, at 7:07 AM, Sungwook Yoon <sy...@maprtech.com> wrote: >> >> Hi, >> >> I am trying to use Hive parquet stored files partitioned by some column. >> So, the directory structure is partitioned with the column. >> >> The column is actually year. >> Let's say there are 5 years, so dir0 are like year=2010, >> year=2011,year=2012,year=2013,year=2014 >> >> We did like following >> select * from dfs.root.`/user/hive/warehouse/table` d where d.dir0 = >> 'year=2012'; >> >> I get nothing. >> Apparently, there are parquet files in the directory though. >> >> Sometimes it picks up e.g., year=2010, but not year=2012.. >> >> Where am I going wrong with this? >> >> Thanks, >> >> Sungwook
