Category: index advisor

Overview

Oracle	Couchbase
Index Documentation	Index Documentation
Types of Indexes:  Posted on January 15, 2020June 17, 2020 Index Advisor Service for Couchbase N1QL (SQL for JSON) Couchbase N1QL is a SQL-like language for JSON data. To retrieve and manipulate JSON data effectively, we need appropriate indexes. The rules for creating these indexes can be read here. But that involves too much reading, hence we now have an Index Advisor service that accepts a query and gives out an index recommendation that would meet the expectations of the Couchbase query engine — all without downloading the latest Couchbase server. This service will provide index recommendations to help DBAs, developers, and architects optimize query performance and meet the SLAs. Posted on September 5, 2019 Index Advisor for Query Workload Overview As the second feature of Index Advisor released in Couchbase server 6.5 (Developer Preview), the Advisor function extends the scope from advising on a single query to providing index recommendations for query workload and support on session handling. In this article, we look at a brief review of how it works in these two different ways. You may also like: Indexing Best Practices Advisor Function On Workload Advisor function works in the following steps: Posted on September 4, 2019 Index Advisor for Couchbase N1QL Query Statement Overview Index advisor is introduced in Couchbase server 6.5 as a developer preview feature. It targets at providing secondary index recommendation to help DBAs and developers optimize Couchbase N1QL query performance. This version is rule-based, and the index candidates will be generated following the design rules specified here. Leading array index key for unnest Equality predicates IN predicates Not less than/between/not greater than predicates Less than/greater than predicates Array predicates Derived join filter as leading key for left-hand-side keyspace IS NOT NULL/MISSING/VALUED predicates Functional predicates Partial index condition Index advisor is designed to work in two ways: Fuel Your Blog