I wanted to know more info how the database within SearchIQ is kept up to date? Do we have to do a full reindex everytime or will it incrementally update as new posts/products are added?
Normally within a WordPress site whenever any post is added, updated or deleted SearchIQ plugin syncs the current state of the post with SearchIQ by sending a sync request.
We also have a delta sync feature available which allows users to sync only those posts which have been added, updated or deleted by some method other than regular WordPress process.