diff --git a/Debate_backend/src/main/java/com/learning/newdemo/entity/DebateHistory.java b/Debate_backend/src/main/java/com/learning/newdemo/entity/DebateHistory.java
index 9357b09..14af94f 100644
--- a/Debate_backend/src/main/java/com/learning/newdemo/entity/DebateHistory.java
+++ b/Debate_backend/src/main/java/com/learning/newdemo/entity/DebateHistory.java
@@ -12,7 +12,6 @@ public class DebateHistory {
     private String content; // 辩论内容JSON
     private String review; // AI复盘内容
     private Integer rounds;
-    private Date createTime;
 
     // 注意：setStance方法应该验证输入
     public void setStance(String stance) {
diff --git a/Debate_backend/target/classes/com/learning/newdemo/entity/DebateHistory.class b/Debate_backend/target/classes/com/learning/newdemo/entity/DebateHistory.class
index 97f5190..f0654d7 100644
Binary files a/Debate_backend/target/classes/com/learning/newdemo/entity/DebateHistory.class and b/Debate_backend/target/classes/com/learning/newdemo/entity/DebateHistory.class differ
diff --git a/database/database.sql b/database/database.sql
index 871208a..abae0e0 100644
--- a/database/database.sql
+++ b/database/database.sql
@@ -28,7 +28,6 @@ CREATE TABLE IF NOT EXISTS `debate_history` (
   `content` text COMMENT '辩论内容JSON',
   `review` text COMMENT 'AI复盘内容',
   `rounds` smallint(6) DEFAULT 0 COMMENT '辩论轮数',
-  `create_time` datetime DEFAULT CURRENT_TIMESTAMP,
   PRIMARY KEY (`id`),
   KEY `idx_user_time` (`user_id`, `create_time`),
   CONSTRAINT `fk_user_history` FOREIGN KEY (`user_id`) REFERENCES `wx_user` (`id`) ON DELETE CASCADE