nordabiz/database/migrations/078_user_insights_indexes.sql

-- Migration 078: User Insights Dashboard - Performance Indexes
-- Created: 2026-02-21
-- Purpose: Optimize queries for user insights dashboard (problem scoring, engagement, page map, paths)

-- Page views: user + date for engagement queries
CREATE INDEX IF NOT EXISTS idx_pv_user_date ON page_views(user_id, viewed_at DESC);

-- Page views: session + date for path analysis (entry/exit pages, transitions)
CREATE INDEX IF NOT EXISTS idx_pv_session_date ON page_views(session_id, viewed_at);

-- Page views: path + date for page map (partial index for recent data)
CREATE INDEX IF NOT EXISTS idx_pv_path_date ON page_views(path, viewed_at) WHERE viewed_at >= '2026-01-01';

-- Email logs: user + type for password reset tracking
CREATE INDEX IF NOT EXISTS idx_el_user_type ON email_logs(user_id, email_type, created_at DESC);

-- JS errors: session for joining with user sessions
CREATE INDEX IF NOT EXISTS idx_je_session ON js_errors(session_id, occurred_at DESC);

-- Security alerts: email + date for problem scoring
CREATE INDEX IF NOT EXISTS idx_sa_email_date ON security_alerts(user_email, created_at DESC);

-- User sessions: user + date for engagement/session queries
CREATE INDEX IF NOT EXISTS idx_us_user_date ON user_sessions(user_id, started_at DESC);

-- Search queries: user + date for engagement scoring
CREATE INDEX IF NOT EXISTS idx_sq_user_date ON search_queries(user_id, searched_at DESC);

-- Conversion events: user + date for engagement scoring
CREATE INDEX IF NOT EXISTS idx_ce_user_date ON conversion_events(user_id, converted_at DESC);