On Wed, Feb 2, 2011 at 3:46 PM, Dan G <diser...@yahoo.se> wrote: > My question is if it would be possible to just change the field to the > preferred > type "tlong" with a precision of "8"? > > Would this change be compatible with my indexed data or should I re-indexed > the > date (a pain with 800+M docs :))? >
I think you'll need to re-index, or range queries on that field will miss many of the documents you've already indexed with precisionStep=0 -Yonik http://lucidimagination.com