添加查询公司类型列表接口

2026-07-17 14:54:43 +08:00
parent c5de219122
commit 7601f9c5a5
3 changed files with 70 additions and 0 deletions
@@ -21,4 +21,12 @@ public interface CompanyMapper extends CommonMapper<Company> {
     */
    @Select("SELECT * FROM bg_company WHERE status = 0 LIMIT #{limit} FOR UPDATE")
    List<Company> selectForUpdate(@Param("limit") int limit);
+
+    /**
+     * 查询已完善公司(status=1)去重后的公司类型
+     * <p>依赖复合索引 idx_status_type(status, company_type) 走松散索引扫描 + 覆盖索引，不回表</p>
+     * <p>NULL/空值的清洗交由 Service 层处理，SQL 只做分组去重</p>
+     */
+    @Select("SELECT company_type FROM bg_company WHERE status = 1 GROUP BY company_type")
+    List<String> selectDistinctCompanyTypes();
 }