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Excessive or duplicate indexes degrade write performance and storage

6/10 Medium

Unused or duplicate indexes cause every database modification to unnecessarily update those indexes, resulting in high storage utilization and IOPs consumption. This creates a silent performance drag that isn't immediately obvious.

PostgreSQL
Category
performance
Workaround
partial
Stage
monitoring
Freshness
persistent
Scope
single_lib
Recurring
Yes

Sources

Collection History

Query: “What are the most common pain points with PostgreSQL for developers in 2025?”3/29/2026

if you have more indexes which are unused or duplicate, every modification to the database will lead to update those unnecessarily, which is where you see storage and I obstacleization.

Created: 3/29/2026Updated: 3/29/2026