Initial commit: 宁夏智慧养殖监管平台

2025-08-25 15:00:46 +08:00
commit ec72c6a8b5
177 changed files with 37263 additions and 0 deletions
--- a/backend/check-primary-keys.js
+++ b/backend/check-primary-keys.js
@@ -0,0 +1,128 @@
+/**
+ * 检查数据库中所有表的主键ID分布情况
+ * @file check-primary-keys.js
+ * @description 分析各表的主键ID范围，为重新排序做准备
+ */
+
+const { sequelize } = require('./config/database-simple');
+const { QueryTypes } = require('sequelize');
+
+async function checkPrimaryKeys() {
+  try {
+    console.log('=== 检查数据库表主键ID分布情况 ===\n');
+    
+    // 获取所有表名
+    const tables = await sequelize.query(
+      "SELECT TABLE_NAME as table_name FROM information_schema.tables WHERE table_schema = DATABASE() AND table_type = 'BASE TABLE'",
+      { type: QueryTypes.SELECT }
+    );
+    
+    console.log(`发现 ${tables.length} 个表:\n`);
+    
+    const tableStats = [];
+    
+    for (const table of tables) {
+      const tableName = table.table_name;
+      
+      try {
+        // 检查表是否有id字段
+        const columns = await sequelize.query(
+          `SELECT COLUMN_NAME as column_name, DATA_TYPE as data_type, IS_NULLABLE as is_nullable, COLUMN_KEY as column_key 
+           FROM information_schema.columns 
+           WHERE table_schema = DATABASE() AND TABLE_NAME = '${tableName}' AND COLUMN_NAME = 'id'`,
+          { type: QueryTypes.SELECT }
+        );
+        
+        if (columns.length === 0) {
+          console.log(`❌ ${tableName}: 没有id字段`);
+          continue;
+        }
+        
+        // 获取ID统计信息
+        const stats = await sequelize.query(
+          `SELECT 
+             COUNT(*) as total_count,
+             MIN(id) as min_id,
+             MAX(id) as max_id,
+             COUNT(DISTINCT id) as unique_count
+           FROM ${tableName}`,
+          { type: QueryTypes.SELECT }
+        );
+        
+        const stat = stats[0];
+        
+        // 检查ID连续性
+        const gapCheck = await sequelize.query(
+          `SELECT COUNT(*) as gap_count
+           FROM (
+             SELECT id + 1 as next_id
+             FROM ${tableName}
+             WHERE id + 1 NOT IN (SELECT id FROM ${tableName})
+             AND id < (SELECT MAX(id) FROM ${tableName})
+           ) as gaps`,
+          { type: QueryTypes.SELECT }
+        );
+        
+        const hasGaps = gapCheck[0].gap_count > 0;
+        
+        const tableInfo = {
+          tableName,
+          totalCount: parseInt(stat.total_count),
+          minId: stat.min_id,
+          maxId: stat.max_id,
+          uniqueCount: parseInt(stat.unique_count),
+          hasGaps,
+          needsReorder: stat.min_id !== 1 || hasGaps
+        };
+        
+        tableStats.push(tableInfo);
+        
+        console.log(`✅ ${tableName}:`);
+        console.log(`   - 记录数: ${tableInfo.totalCount}`);
+        console.log(`   - ID范围: ${tableInfo.minId} - ${tableInfo.maxId}`);
+        console.log(`   - 唯一ID数: ${tableInfo.uniqueCount}`);
+        console.log(`   - 有间隙: ${hasGaps ? '是' : '否'}`);
+        console.log(`   - 需要重排: ${tableInfo.needsReorder ? '是' : '否'}`);
+        console.log('');
+        
+      } catch (error) {
+        console.log(`❌ ${tableName}: 检查失败 - ${error.message}`);
+      }
+    }
+    
+    // 汇总统计
+    console.log('\n=== 汇总统计 ===');
+    const needReorderTables = tableStats.filter(t => t.needsReorder);
+    console.log(`需要重新排序的表: ${needReorderTables.length}/${tableStats.length}`);
+    
+    if (needReorderTables.length > 0) {
+      console.log('\n需要重新排序的表:');
+      needReorderTables.forEach(table => {
+        console.log(`- ${table.tableName} (${table.minId}-${table.maxId}, ${table.totalCount}条记录)`);
+      });
+    }
+    
+    return tableStats;
+    
+  } catch (error) {
+    console.error('检查主键失败:', error);
+    throw error;
+  } finally {
+    await sequelize.close();
+  }
+}
+
+// 如果直接运行此脚本
+if (require.main === module) {
+  checkPrimaryKeys()
+    .then(() => {
+      console.log('\n检查完成!');
+      process.exit(0);
+    })
+    .catch(error => {
+      console.error('检查失败:', error);
+      process.exit(1);
+    });
+}
+
+module.exports = { checkPrimaryKeys };