-- Migration: Add additional indexes for improved query performance
-- Version: 014

-- Index for audit log queries by user and date (activity reports)
CREATE INDEX IF NOT EXISTS idx_audit_log_user_created ON audit_log(user_id, created_at DESC);

-- Index for audit log queries by action type (security monitoring)
CREATE INDEX IF NOT EXISTS idx_audit_log_action_type ON audit_log(action_type, created_at DESC);

-- Index for tickets by status only (status filtering)
CREATE INDEX IF NOT EXISTS idx_tickets_status ON tickets(status);

-- Composite index for common dashboard queries (status + priority + created_at)
CREATE INDEX IF NOT EXISTS idx_tickets_status_priority_created ON tickets(status, priority, created_at DESC);

-- Index for ticket comments by ticket_id and date (comment listing)
CREATE INDEX IF NOT EXISTS idx_comments_ticket_created ON ticket_comments(ticket_id, created_at DESC);

-- Index for API keys by key value (authentication lookups)
CREATE INDEX IF NOT EXISTS idx_api_keys_key_value ON api_keys(key_value);

-- Index for user preferences lookup
CREATE INDEX IF NOT EXISTS idx_user_preferences_user_key ON user_preferences(user_id, preference_key);
