Database Tool

Database Index Review

Turn query shape notes into an index review brief before changing PostgreSQL, MySQL, or another relational database.

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Table Name

Filter ColumnsJoin ColumnsSort / Group Fields

This table has frequent reads or dashboard queries.This table is write-heavy and index cost matters.

Generated Index Review Brief

Table: orders

Likely candidates:
- Composite lookup index: (tenant_id, status, created_at)
- Join support index: (customer_id)

Workload note:
- Read-heavy or mixed workload.
- Read-heavy access patterns can usually justify targeted indexes when query frequency is high.

Validation steps:
- Capture the slow query or common query shape first.
- Run EXPLAIN or EXPLAIN ANALYZE before and after adding an index.
- Avoid indexing every column independently; prefer indexes that match real filters, joins, and ordering.
- Remove duplicate or unused indexes after monitoring production behavior.