diff --git a/.workbuddy/memory/2026-09-03.md b/.workbuddy/memory/2026-09-03.md
new file mode 100644
index 0000000..c2cd0ac
--- /dev/null
+++ b/.workbuddy/memory/2026-09-03.md
@@ -0,0 +1,10 @@
+# 2026-09-03
+
+## 修复：素材管理搜索报 Unknown column 'b.name'
+
+- 文件：`src/main/java/com/gxwebsoft/common/system/mapper/xml/FileRecordMapper.xml`
+- 根因：`selectSql` 的 `keywords` 模糊搜索块（2024-11-25 提交 cf4f010 引入，疑似从 UserVerifyMapper 复制过来未改别名）写成了 `b.name` / `b.comments`。
+  该块中 `a` = sys_file_record，`b` = sys_user；sys_user **没有** `name` 字段（只有 username / nickname / real_name / phone），故 MySQL 报 `Unknown column 'b.name' in 'where clause'`。
+- 修复：关键词改为搜索文件侧字段 `a.name` / `a.path` / `a.comments`，加上传者 `b.username` / `b.nickname` / `b.real_name`；
+  `a.create_user_id = #{param.keywords}` 用 `<if test="param.keywords.matches('[0-9]+')">` 包住，避免非数字关键词被 MySQL 隐式转成 0。
+- 教训：跨 mapper 复制动态 SQL 片段时，务必核对表别名与目标表字段（sys_user 无 name 列）。
diff --git a/src/main/java/com/gxwebsoft/common/system/mapper/xml/FileRecordMapper.xml b/src/main/java/com/gxwebsoft/common/system/mapper/xml/FileRecordMapper.xml
index 6a08242..dddea41 100644
--- a/src/main/java/com/gxwebsoft/common/system/mapper/xml/FileRecordMapper.xml
+++ b/src/main/java/com/gxwebsoft/common/system/mapper/xml/FileRecordMapper.xml
@@ -59,13 +59,19 @@
             <if test="param.contentType != null">
                 AND a.content_type LIKE CONCAT('%', #{param.contentType}, '%')
             </if>
-            <if test="param.keywords != null">
-              AND (
-              a.create_user_id = #{param.keywords}
-              OR b.name LIKE CONCAT('%', #{param.keywords}, '%')
-              OR b.comments LIKE CONCAT('%', #{param.keywords}, '%')
-              )
-          </if>
+            <if test="param.keywords != null and param.keywords != ''">
+                AND (
+                a.`name` LIKE CONCAT('%', #{param.keywords}, '%')
+                OR a.path LIKE CONCAT('%', #{param.keywords}, '%')
+                OR a.comments LIKE CONCAT('%', #{param.keywords}, '%')
+                OR b.username LIKE CONCAT('%', #{param.keywords}, '%')
+                OR b.nickname LIKE CONCAT('%', #{param.keywords}, '%')
+                OR b.real_name LIKE CONCAT('%', #{param.keywords}, '%')
+                <if test="param.keywords.matches('[0-9]+')">
+                    OR a.create_user_id = #{param.keywords}
+                </if>
+                )
+            </if>
         </where>
     </sql>