Understand Postgres indexes with pganalyze

Interested in learning best practices for Postgres indexes?

Learn how to create the best Postgres index for your queries. A deep dive into index types, operators, data types and more.

Download our free ebook “Effective Indexing in Postgres”.

Find the Best Indexes Automatically

Stop guessing which indexes to add. The pganalyze Index Advisor evaluates your entire query workload across all tables and recommends the optimal set of indexes, powered by the pganalyze Indexing Engine.

Surface performance improvement opportunities without manual EXPLAIN analysis or trial and error.

Screenshot of pganalyze Index Advisor Index Recommendation

Reduce Query Latency and Database Load

See exactly how each recommended index reduces scan cost and improves query performance, with detailed insights into scan expressions and estimated cost improvements per table.

Spend less time diagnosing slow queries and more time shipping features.

Go From Insight to Action in Seconds

Every recommendation comes with a ready-to-use CREATE INDEX command you can copy directly into your database.

Already using the optimal set of indexes? Index Advisor confirms it, so you can move on with confidence.

Screenshot of pganalyze Index Advisor CREATE Index copy button

Screenshot of pganalyze Cluster-Aware Index Advisor showing scans across primary and replica servers

Cluster-Aware Insights

Reconcile recommendations per server and across a cluster. Index Advisor combines workloads across your primary and all read replicas for accurate recommendations based on your architecture.

Unused indexes are only flagged when not used on any server in the cluster, protecting indexes that are critical to queries on a replica. See how cluster-aware indexing works→

Try Index Advisor Free, Right in Your Browser

Curious what Index Advisor can do? Paste any query and schema to instantly see whether your indexes are effective, or understand why the planner is ignoring them -- no account or setup required. Try the free standalone Index Advisor→

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“We couldn’t understand why our database was struggling so much with things like vacuums. It was just hard to get visibility into what is happening in the internals. None of the tools we had, like RDS Performance Insights or application-level logging, gave us the deep insights we needed.”

- Arka Ganguli, Engineering Manager, Notion