Does rebuilding indexes improve query performance?

Rebuilding indexes can definitely increase your query performance and will definitely help you optimise query times on your enterprise search platform.

Rebuilding indexes deletes the old index and replaces this with a new index, not only will this optimise query times but will also eliminate fragmentation, reclaim storage space in addition to reordering the index rows.

Indexes provide essential pointers to your data and if these become fragmented then this can have an adverse impact on elapsed query times. Without regularly rebuilding indexes the performance of your enterprise search platform will decrease significantly and will impact your users.