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-- ============================================================
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-- 采集分析日志表 + 采集周期汇总表（幂等迁移脚本）
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-- 创建时间：2026-05-05
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-- 说明：在 cnc_log 库中新增两张按月分区表
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-- log_collect_analysis: 每次采集、每台机床的分析记录
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-- log_collect_cycle: 每次采集周期的汇总信息
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-- 执行前提：USE cnc_log; 已执行 01-init-schema.sql
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-- ============================================================
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USE cnc_log;
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-- -----------------------------------------------------------
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-- 1. 采集分析日志表 log_collect_analysis（按月分区）
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-- 记录每次采集后对每台机床的数据变化分析
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-- -----------------------------------------------------------
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DROP TABLE IF EXISTS log_collect_analysis;
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CREATE TABLE log_collect_analysis (
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id BIGINT AUTO_INCREMENT,
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analysis_time DATETIME NOT NULL COMMENT '分析时间（分区键）',
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raw_log_id BIGINT NOT NULL COMMENT '关联原始日志ID（log_collect_raw.id）',
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collect_address_id INT NOT NULL COMMENT '采集地址ID（关联cnc_collect_address）',
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machine_id INT NOT NULL COMMENT '机床ID（关联cnc_machine）',
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analysis_type VARCHAR(30) NOT NULL COMMENT '分析类型：NORMAL_UNCHANGED/PART_COUNT_INCREASE/PROGRAM_SWITCH/MANUAL_RESET/DEVICE_ONLINE/DEVICE_OFFLINE/NEW_DEVICE_FOUND/DATA_ANOMALY/COLLECTION_FAILED',
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previous_program VARCHAR(200) NULL COMMENT '上一次NC程序名',
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current_program VARCHAR(200) NULL COMMENT '本次NC程序名',
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previous_part_count DECIMAL(15,5) NULL COMMENT '上一次零件计数',
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current_part_count DECIMAL(15,5) NULL COMMENT '本次零件计数',
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part_count_delta DECIMAL(15,5) NULL COMMENT '零件计数变化量（正=增加，负=减少）',
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previous_status VARCHAR(20) NULL COMMENT '上一次设备状态',
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current_status VARCHAR(20) NULL COMMENT '本次设备状态',
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analysis_summary VARCHAR(500) NOT NULL COMMENT '人类可读的分析摘要',
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analysis_detail JSON NULL COMMENT '完整的字段级对比数据（JSON）',
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id, analysis_time),
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INDEX idx_address_time (collect_address_id, analysis_time),
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INDEX idx_machine_time (machine_id, analysis_time),
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INDEX idx_type_time (analysis_type, analysis_time),
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INDEX idx_raw_log (raw_log_id),
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INDEX idx_program_time (current_program, analysis_time)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
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COMMENT='采集分析日志表（按月分区，记录每次采集对每台机床的数据变化分析）'
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PARTITION BY RANGE (TO_DAYS(analysis_time)) (
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PARTITION p202605 VALUES LESS THAN (TO_DAYS('2026-06-01')),
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PARTITION p202606 VALUES LESS THAN (TO_DAYS('2026-07-01')),
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PARTITION p202607 VALUES LESS THAN (TO_DAYS('2026-08-01')),
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PARTITION p_future VALUES LESS THAN MAXVALUE
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);
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-- -----------------------------------------------------------
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-- 2. 采集周期汇总表 log_collect_cycle（按月分区）
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-- 记录每次采集周期（一个地址的一次完整采集）的汇总信息
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-- -----------------------------------------------------------
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DROP TABLE IF EXISTS log_collect_cycle;
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CREATE TABLE log_collect_cycle (
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id BIGINT AUTO_INCREMENT,
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cycle_time DATETIME NOT NULL COMMENT '周期开始时间（分区键）',
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collect_address_id INT NOT NULL COMMENT '采集地址ID（关联cnc_collect_address）',
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raw_log_id BIGINT NOT NULL COMMENT '关联原始日志ID（log_collect_raw.id）',
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end_time DATETIME NULL COMMENT '周期结束时间',
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duration_ms INT NULL COMMENT '本次采集总耗时（毫秒）',
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total_machines INT NOT NULL DEFAULT 0 COMMENT '本周期采集的机床总数',
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success_count INT NOT NULL DEFAULT 0 COMMENT '成功采集的机床数',
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fail_count INT NOT NULL DEFAULT 0 COMMENT '失败采集的机床数',
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change_distribution JSON NULL COMMENT '变化类型分布（如 {"PROGRAM_SWITCH":2,"PART_COUNT_INCREASE":5,"NORMAL_UNCHANGED":3}）',
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has_anomaly TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否存在异常（1=有异常：DATA_ANOMALY/COLLECTION_FAILED/DEVICE_OFFLINE）',
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cycle_summary VARCHAR(500) NULL COMMENT '人类可读的周期汇总',
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created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
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PRIMARY KEY (id, cycle_time),
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INDEX idx_address_time (collect_address_id, cycle_time),
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INDEX idx_time (cycle_time),
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INDEX idx_anomaly_time (has_anomaly, cycle_time)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
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COMMENT='采集周期汇总表（按月分区，每次采集周期的汇总信息）'
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PARTITION BY RANGE (TO_DAYS(cycle_time)) (
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PARTITION p202605 VALUES LESS THAN (TO_DAYS('2026-06-01')),
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PARTITION p202606 VALUES LESS THAN (TO_DAYS('2026-07-01')),
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PARTITION p202607 VALUES LESS THAN (TO_DAYS('2026-08-01')),
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PARTITION p_future VALUES LESS THAN MAXVALUE
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);
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-- -----------------------------------------------------------
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-- 3. 为现有 log_collect_raw 表增加补充索引
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-- 支持按采集成功/失败筛选，以及按响应时长分析
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-- -----------------------------------------------------------
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-- 检查索引是否已存在，若不存在则添加（幂等）
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SET @exist := (SELECT COUNT(*) FROM information_schema.STATISTICS
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WHERE TABLE_SCHEMA = 'cnc_log' AND TABLE_NAME = 'log_collect_raw' AND INDEX_NAME = 'idx_success_time');
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SET @sqlstmt := IF(@exist = 0,
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'ALTER TABLE cnc_log.log_collect_raw ADD INDEX idx_success_time (is_success, request_time)',
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'SELECT ''索引 idx_success_time 已存在，跳过''');
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PREPARE stmt FROM @sqlstmt;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;
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