If i update 10K products and re-indexed it first time it will re-indexed all.
But if i update 10 more product so it will require re-index so my question is is it re-index all the products from starting and re-index 10k products or it will only re-index 10 products.
Like wen i it re-index query and check my SQL sow processlist it will run from 1 or it will only re-index after 10k products.