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update 使用 in 优化 or 提升索引命中率

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疯狂的狮子li
2022-03-14 16:01:30 +08:00
parent 469ed434fa
commit f4b16090db
2 changed files with 9 additions and 6 deletions
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6
ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserServiceImpl.java
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@@ -82,9 +82,9 @@ public class SysUserServiceImpl implements ISysUserService {
List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId)
.apply("find_in_set({0},ancestors) <> 0", user.getDeptId()));
w.eq("u.dept_id", user.getDeptId())
.or()
.in("u.dept_id", deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList()));
List<Long> ids = deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList());
ids.add(user.getDeptId());
w.in("u.dept_id", ids);
});
return wrapper;
}