PREWHERE optimization with ReplacingMergeTree and FINAL in Clickhouse

In this blog, we will learn about how to reduce I/O and improve query performance using PREWHERE in queries with FINAL keyword on ReplacingMergeTree table in Clickhouse. Prerequisite Clickhouse ReplacingMergeTree FINAL prewhere Above is the best place to understand prewhere optimiation and how it can improve the query performance. It is recommended to go through it before proceeding. PREWHERE with FINAL in ReplacingMergeTree ReplacingMergeTree table engine is widely used to design the update/del