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Version: 1.0.0
Last Updated: 2026-01-17
Status: Active

Overview

This document tracks all database performance optimizations for Encore OS Platform.

Optimizations Completed

2026-01-17: Phase 2A - Foreign Key Indexes (60 indexes)

2026-01-17: Phase 3 - RLS Optimization (12 tables)

Added denormalized organization_id columns to child tables for faster RLS evaluation:

2026-01-17: Phase 4 - RLS Policy Updates (48 policies)

Updated RLS policies on 12 denormalized tables to use direct organization_id checks: Expected Impact: 2-5x faster queries on child tables

Performance Monitoring

Query Performance

Index Usage

Table Bloat

2026-01-21: Phase 5 - Performance Indexes Phase 2 ✅ DEPLOYED

Added composite indexes for date range queries, multi-column filters, and sort optimization: Migration: 20260121000000_performance_indexes_phase2.sql
Status: ✅ Successfully deployed to Production (zkgxozahyczcnzpwhbbf) and Staging (bcuftbeczbudndukafbc)
Note: Indexes use conditional creation (DO blocks) to handle tables with/without deleted_at and site_id columns
Expected Impact: 2-3x faster queries for date ranges, multi-column filters, and sorted lists

2026-02-15: Phase 6A - Slow Query Indexes

Added composite indexes for the slowest application queries identified via pg_stat_statements: Migration: 20260215160000_performance_slow_query_indexes.sql Expected Impact: 10-15x faster queries on tax brackets and deduction types

2026-02-15: Phase 6B - FK Indexes Phase 3

Added indexes for ~27 remaining unindexed foreign key columns (created_by, updated_by, assigned_to) across CE, IT, FM, GR, and LO tables: Migration: 20260215160100_performance_fk_indexes_phase3.sql Expected Impact: Faster cascading deletes on user removal; eliminates Supabase Advisor warnings

Manual Actions Required


See: docs/database/INDEX_OPTIMIZATION_REPORT.md for detailed index analysis. See: docs/database/RLS_POLICY_AUDIT.md for RLS optimization details. See: reports/performance/optimization-report-2026-01-21.md for comprehensive optimization plan.