MVP
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Marcelo
145
phase1_database_migration.sql
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145
phase1_database_migration.sql
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-- ============================================================================
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-- PHASE 1: Database Migration for Time Tracking & Alerts
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-- Database: machine_data
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-- Version: 1.0
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-- ============================================================================
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-- ----------------------------------------------------------------------------
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-- Table 1: KPI Snapshots (Time-series data for graphs)
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-- ----------------------------------------------------------------------------
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CREATE TABLE IF NOT EXISTS kpi_snapshots (
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id INT AUTO_INCREMENT PRIMARY KEY,
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timestamp BIGINT NOT NULL COMMENT 'Unix timestamp in milliseconds',
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work_order_id VARCHAR(255),
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oee_percent DECIMAL(5,2) DEFAULT 0,
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availability_percent DECIMAL(5,2) DEFAULT 0,
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performance_percent DECIMAL(5,2) DEFAULT 0,
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quality_percent DECIMAL(5,2) DEFAULT 0,
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cycle_count INT DEFAULT 0,
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good_parts INT DEFAULT 0,
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scrap_count INT DEFAULT 0,
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operating_time DECIMAL(10,2) DEFAULT 0 COMMENT 'Accumulated seconds in state 1',
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downtime DECIMAL(10,2) DEFAULT 0 COMMENT 'Accumulated seconds in state 0 while tracking',
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machine_state INT DEFAULT 0 COMMENT 'Current machine state: 0 or 1',
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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INDEX idx_timestamp (timestamp),
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INDEX idx_work_order (work_order_id),
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INDEX idx_created_at (created_at)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='KPI data snapshots for trending and graphs';
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-- ----------------------------------------------------------------------------
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-- Table 2: Alert History (Manual + Automatic alerts)
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-- ----------------------------------------------------------------------------
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CREATE TABLE IF NOT EXISTS alert_history (
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id INT AUTO_INCREMENT PRIMARY KEY,
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timestamp BIGINT NOT NULL COMMENT 'Unix timestamp in milliseconds',
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alert_type VARCHAR(100) NOT NULL,
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description TEXT,
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severity VARCHAR(20) NOT NULL COMMENT 'info, warning, critical',
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source VARCHAR(50) NOT NULL COMMENT 'manual or automatic',
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work_order_id VARCHAR(255),
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acknowledged BOOLEAN DEFAULT 0,
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acknowledged_at BIGINT,
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acknowledged_by VARCHAR(100),
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auto_resolved BOOLEAN DEFAULT 0,
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resolved_at BIGINT,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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INDEX idx_timestamp (timestamp),
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INDEX idx_severity (severity),
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INDEX idx_acknowledged (acknowledged),
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INDEX idx_work_order (work_order_id),
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INDEX idx_source (source)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Alert history for both manual and automatic alerts';
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-- ----------------------------------------------------------------------------
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-- Table 3: Shift Definitions (Reference data)
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-- ----------------------------------------------------------------------------
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CREATE TABLE IF NOT EXISTS shift_definitions (
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id INT AUTO_INCREMENT PRIMARY KEY,
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shift_name VARCHAR(50) NOT NULL,
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start_hour INT NOT NULL COMMENT '0-23',
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start_minute INT NOT NULL DEFAULT 0,
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end_hour INT NOT NULL COMMENT '0-23',
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end_minute INT NOT NULL DEFAULT 0,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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UNIQUE KEY unique_shift_name (shift_name)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Shift definitions for time range filtering';
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-- Seed shift data
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INSERT IGNORE INTO shift_definitions (id, shift_name, start_hour, start_minute, end_hour, end_minute) VALUES
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(1, 'Day Shift', 6, 0, 15, 0),
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(2, 'Evening Shift', 15, 0, 23, 0),
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(3, 'Night Shift', 23, 0, 6, 0);
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-- ----------------------------------------------------------------------------
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-- Table 4: Session State (For crash recovery - Option 2)
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-- ----------------------------------------------------------------------------
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CREATE TABLE IF NOT EXISTS session_state (
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id INT AUTO_INCREMENT PRIMARY KEY,
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session_key VARCHAR(50) NOT NULL COMMENT 'Always "current_session" - single row table',
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work_order_id VARCHAR(255),
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cycle_count INT DEFAULT 0,
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production_start_time BIGINT COMMENT 'Unix timestamp when tracking started',
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operating_time DECIMAL(10,2) DEFAULT 0,
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downtime DECIMAL(10,2) DEFAULT 0,
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last_update_time BIGINT,
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tracking_enabled BOOLEAN DEFAULT 0,
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machine_state INT DEFAULT 0,
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scrap_prompt_issued_for VARCHAR(255),
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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UNIQUE KEY unique_session (session_key)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Current session state for crash recovery';
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-- Initialize the single session row
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INSERT IGNORE INTO session_state (session_key, work_order_id, cycle_count, tracking_enabled)
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VALUES ('current_session', NULL, 0, 0);
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-- ----------------------------------------------------------------------------
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-- Table 5: Add columns to existing work_orders table (if not present)
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-- ----------------------------------------------------------------------------
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-- Check if scrap_count column exists, add if missing
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SET @col_exists = 0;
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SELECT COUNT(*) INTO @col_exists
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'machine_data'
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AND TABLE_NAME = 'work_orders'
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AND COLUMN_NAME = 'scrap_count';
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SET @query = IF(@col_exists = 0,
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'ALTER TABLE work_orders ADD COLUMN scrap_count INT DEFAULT 0 AFTER good_parts',
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'SELECT "Column scrap_count already exists" AS Info');
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PREPARE stmt FROM @query;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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-- Check if scrap_parts column exists (legacy), rename to scrap_count if needed
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SET @col_exists_legacy = 0;
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SELECT COUNT(*) INTO @col_exists_legacy
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = 'machine_data'
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AND TABLE_NAME = 'work_orders'
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AND COLUMN_NAME = 'scrap_parts';
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SET @query = IF(@col_exists_legacy > 0,
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'ALTER TABLE work_orders CHANGE scrap_parts scrap_count INT DEFAULT 0',
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'SELECT "No legacy scrap_parts column to rename" AS Info');
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PREPARE stmt FROM @query;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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-- ----------------------------------------------------------------------------
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-- Verification Queries (Run these to confirm migration success)
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-- ----------------------------------------------------------------------------
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-- SELECT COUNT(*) AS kpi_snapshots_count FROM kpi_snapshots;
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-- SELECT COUNT(*) AS alert_history_count FROM alert_history;
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-- SELECT * FROM shift_definitions;
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-- SELECT * FROM session_state WHERE session_key = 'current_session';
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-- SHOW COLUMNS FROM work_orders;
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-- ============================================================================
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-- END OF MIGRATION
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-- ============================================================================
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