On Sat, Aug 29, 2009 at 7:09 AM, engy.ali<omeshm...@hotmail.com> wrote: > I thought that optimization would decrease or at least be equal to the same > index size before optimization
Some index structures like norms are non-sparse. Index one unique field with norms and there is a byte allocated for every document in the index. Merge that with another index, and the size for the norms goes to byte[maxDoc()] -Yonik http://www.lucidimagination.com
