From 668edf04ca5694f4ffcc25316e38df7ccc6f3925 Mon Sep 17 00:00:00 2001
From: wangli <274027703@qq.com>
Date: Sat, 14 Sep 2024 13:56:57 +0800
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---
 .../src/main/resources/sql/upgrade_to_1.4.2.sql              | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql b/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
index 68126ece0..773b7040c 100644
--- a/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
+++ b/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
@@ -26,3 +26,8 @@ create table `workflow-engine`.ext_ax_process_log
     update_at           datetime      default CURRENT_TIMESTAMP not null on update CURRENT_TIMESTAMP comment '更新时间',
     is_delete           bigint        default 0                 not null comment '是否删除'
 ) comment '审批日志持久化';
+
+create unique index idx_process_task_status
+    on ext_ax_process_log (process_instance_id, task_id, status, is_delete);
+
+