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migrations/completed/004_device_management_cleanup.sql
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migrations/completed/004_device_management_cleanup.sql
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-- =====================================================
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-- Migration: Device Management System Cleanup
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-- Date: 2025-01-03
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-- Purpose: Consolidate device tracking into single source of truth
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-- =====================================================
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-- STEP 1: Backup existing data
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-- =====================================================
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CREATE TABLE IF NOT EXISTS backup_device_data_20250103 AS
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SELECT
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'activations' as source_table,
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a.id,
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a.license_id,
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COALESCE(a.device_name, a.machine_id) as device_name,
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a.hardware_hash as hardware_fingerprint,
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a.first_seen as first_activated_at,
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a.last_seen as last_seen_at,
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a.is_active,
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a.os_info,
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a.app_version
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FROM activations a
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UNION ALL
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SELECT
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'device_registrations' as source_table,
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dr.id,
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dr.license_id,
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dr.device_name,
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dr.hardware_id as hardware_fingerprint,
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dr.first_seen as first_activated_at,
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dr.last_seen as last_seen_at,
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dr.is_active,
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dr.operating_system::jsonb as os_info,
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NULL as app_version
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FROM device_registrations dr;
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-- STEP 2: Standardize device_registrations table
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-- =====================================================
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-- Add missing columns to device_registrations
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ALTER TABLE device_registrations
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ADD COLUMN IF NOT EXISTS hardware_fingerprint VARCHAR(255),
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ADD COLUMN IF NOT EXISTS app_version VARCHAR(20),
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ADD COLUMN IF NOT EXISTS metadata JSONB DEFAULT '{}',
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ADD COLUMN IF NOT EXISTS first_activated_at TIMESTAMP WITH TIME ZONE,
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ADD COLUMN IF NOT EXISTS last_seen_at TIMESTAMP WITH TIME ZONE;
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-- Migrate existing hardware_id to hardware_fingerprint
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UPDATE device_registrations
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SET hardware_fingerprint = hardware_id
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WHERE hardware_fingerprint IS NULL AND hardware_id IS NOT NULL;
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-- Migrate timestamp columns
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UPDATE device_registrations
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SET first_activated_at = first_seen,
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last_seen_at = last_seen
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WHERE first_activated_at IS NULL OR last_seen_at IS NULL;
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-- STEP 3: Migrate data from activations to device_registrations
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-- =====================================================
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-- Insert activations that don't exist in device_registrations
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INSERT INTO device_registrations (
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license_id,
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hardware_fingerprint,
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device_name,
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device_type,
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operating_system,
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first_activated_at,
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last_seen_at,
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is_active,
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ip_address,
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user_agent,
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app_version,
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metadata
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)
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SELECT
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a.license_id,
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a.hardware_hash as hardware_fingerprint,
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COALESCE(a.device_name, a.machine_id) as device_name,
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CASE
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WHEN a.os_info->>'os' ILIKE '%windows%' THEN 'desktop'
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WHEN a.os_info->>'os' ILIKE '%mac%' THEN 'desktop'
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WHEN a.os_info->>'os' ILIKE '%linux%' THEN 'desktop'
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ELSE 'unknown'
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END as device_type,
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a.os_info->>'os' as operating_system,
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a.first_seen,
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a.last_seen,
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a.is_active,
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NULL as ip_address,
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NULL as user_agent,
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a.app_version,
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a.os_info as metadata
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FROM activations a
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WHERE NOT EXISTS (
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SELECT 1 FROM device_registrations dr
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WHERE dr.license_id = a.license_id
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AND dr.hardware_fingerprint = a.hardware_hash
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);
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-- Update existing device_registrations with latest data from activations
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UPDATE device_registrations dr
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SET
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last_seen_at = GREATEST(dr.last_seen_at, a.last_seen),
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is_active = a.is_active,
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app_version = COALESCE(a.app_version, dr.app_version),
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metadata = COALESCE(dr.metadata, '{}')::jsonb || COALESCE(a.os_info, '{}')::jsonb
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FROM activations a
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WHERE dr.license_id = a.license_id
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AND dr.hardware_fingerprint = a.hardware_hash
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AND a.last_seen > dr.last_seen_at;
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-- STEP 4: Standardize licenses table
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-- =====================================================
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-- Remove duplicate device limit columns, keep only device_limit
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ALTER TABLE licenses DROP COLUMN IF EXISTS max_devices;
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ALTER TABLE licenses DROP COLUMN IF EXISTS max_activations;
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-- Ensure device_limit has proper constraints
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ALTER TABLE licenses
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DROP CONSTRAINT IF EXISTS licenses_device_limit_check,
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ADD CONSTRAINT licenses_device_limit_check CHECK (device_limit >= 1);
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-- Rename max_concurrent_sessions to concurrent_sessions_limit for clarity
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ALTER TABLE licenses
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RENAME COLUMN max_concurrent_sessions TO concurrent_sessions_limit;
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-- Update constraint to reference device_limit
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ALTER TABLE licenses
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DROP CONSTRAINT IF EXISTS check_concurrent_sessions,
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ADD CONSTRAINT check_concurrent_sessions CHECK (concurrent_sessions_limit <= device_limit);
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-- STEP 5: Clean up session tables
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-- =====================================================
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-- Consolidate into single license_sessions table
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-- First, backup existing session data
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CREATE TABLE IF NOT EXISTS backup_sessions_20250103 AS
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SELECT
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id,
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license_id,
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license_key,
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session_id,
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username,
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computer_name,
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hardware_id,
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ip_address,
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user_agent,
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app_version,
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started_at,
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last_heartbeat,
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ended_at,
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is_active
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FROM sessions;
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-- Add missing columns to license_sessions
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ALTER TABLE license_sessions
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ADD COLUMN IF NOT EXISTS device_registration_id INTEGER REFERENCES device_registrations(id),
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ADD COLUMN IF NOT EXISTS ended_at TIMESTAMP WITH TIME ZONE,
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ADD COLUMN IF NOT EXISTS end_reason VARCHAR(50),
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ADD COLUMN IF NOT EXISTS user_agent TEXT;
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-- Link license_sessions to device_registrations
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UPDATE license_sessions ls
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SET device_registration_id = dr.id
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FROM device_registrations dr
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WHERE ls.license_id = dr.license_id
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AND ls.hardware_id = dr.hardware_fingerprint
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AND ls.device_registration_id IS NULL;
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-- STEP 6: Create indexes for performance
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-- =====================================================
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CREATE INDEX IF NOT EXISTS idx_device_registrations_license_fingerprint
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ON device_registrations(license_id, hardware_fingerprint);
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CREATE INDEX IF NOT EXISTS idx_device_registrations_active
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ON device_registrations(license_id, is_active) WHERE is_active = true;
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CREATE INDEX IF NOT EXISTS idx_device_registrations_last_seen
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ON device_registrations(last_seen_at DESC);
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-- STEP 7: Drop old columns (after verification)
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-- =====================================================
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-- These will be dropped after confirming migration success
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ALTER TABLE device_registrations
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DROP COLUMN IF EXISTS hardware_id,
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DROP COLUMN IF EXISTS first_seen,
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DROP COLUMN IF EXISTS last_seen;
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-- STEP 8: Create views for backwards compatibility (temporary)
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-- =====================================================
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CREATE OR REPLACE VIEW v_activations AS
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SELECT
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id,
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license_id,
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device_name as machine_id,
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device_name,
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hardware_fingerprint as hardware_hash,
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first_activated_at as activation_date,
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first_activated_at as first_seen,
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last_seen_at as last_seen,
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last_seen_at as last_heartbeat,
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is_active,
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metadata as os_info,
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operating_system,
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app_version,
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ip_address,
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user_agent,
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device_type,
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deactivated_at,
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deactivated_by
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FROM device_registrations;
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-- STEP 9: Update system_api_key usage tracking
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-- =====================================================
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UPDATE system_api_key
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SET last_used_at = CURRENT_TIMESTAMP,
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usage_count = usage_count + 1
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WHERE id = 1;
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-- STEP 10: Add audit log entry for migration
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-- =====================================================
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INSERT INTO audit_log (
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timestamp,
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username,
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action,
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entity_type,
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entity_id,
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additional_info
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) VALUES (
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CURRENT_TIMESTAMP,
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'system',
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'device_management_migration',
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'database',
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0,
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'Consolidated device management system - merged activations into device_registrations'
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);
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-- Summary of changes:
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-- 1. Consolidated device tracking into device_registrations table
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-- 2. Removed duplicate columns: max_devices, max_activations
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-- 3. Standardized on device_limit column
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-- 4. Renamed max_concurrent_sessions to concurrent_sessions_limit
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-- 5. Added proper foreign key relationships
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-- 6. Created backwards compatibility view for activations
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-- 7. Improved indexing for performance
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