I'm using ES 0.19.0 and I would like to know if there's an option to merge
two or more indices. And if there's no option, what is the
common/easiest/fastest way to to this? I guess I need to move all documents
from the first index to the second, which basically means re-indexing all
documents of the first index into the second? Or are there any more
Any help would be much appreciated!