John What happens if you do the select query with no filter. The scenario you explained does seem like an unexpected behavior.
-Neeraja On Thu, Feb 4, 2016 at 8:21 AM, John Omernik <j...@omernik.com> wrote: > Prior to posting a JIRA, I thought I'd toss this here: > > If I have a directory: data with subdirectories with parquet files in it > > > data/2016-01-01 > data/2016-01-02 > > (Seem familiar? This came up in my other testing) > > > If I have MORE then one subdirectory, > > then > > select count(1) from `data/` where dir0='2016-01-01' > > Works fine. > > However, if I have EXACTLY one subdirectory, then > > select count(1) from `data/` where dir0 = '2016-01-01' > > Takes 15 seconds (instead of returning almost instantly) and reports 0 > records for count. > Note, this directory DOES exists, so that is not the issue. > > If I add a second directory, then the exact query returns almost instantly, > and reports the correct number of records. > > In addition, when there is only one directory, select count(1) from `data/` > returns instant and the correct count. > > To me, it appears if there is ONE and only ONE subdirectory, then dir0= > doesn't work as I think people would expect it to. I can't think of a real > reason to have this behave, and to me it violates the principle of "least > surprise", but I am not up on the internals of Drill, so I thought I'd post > here first. > > John >
