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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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9
ruoyi-modules/ruoyi-system/src/main/java/com/ruoyi/system/dubbo/RemoteDataScopeServiceImpl.java
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@@ -45,11 +45,14 @@ public class RemoteDataScopeServiceImpl implements RemoteDataScopeService {
@Override @Override
public String getDeptAndChild(Long deptId) { public String getDeptAndChild(Long deptId) {
List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId)
.apply("find_in_set({0},ancestors) <> 0", deptId));
List<Long> ids = deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList());
ids.add(deptId);
List<SysDept> list = deptMapper.selectList(new LambdaQueryWrapper<SysDept>() List<SysDept> list = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId) .select(SysDept::getDeptId)
.eq(SysDept::getDeptId, deptId) .in(SysDept::getDeptId, ids));
.or()
.apply("find_in_set({0},ancestors) <> 0", deptId));
if (CollUtil.isNotEmpty(list)) { if (CollUtil.isNotEmpty(list)) {
return list.stream().map(d -> Convert.toStr(d.getDeptId())).collect(Collectors.joining(",")); return list.stream().map(d -> Convert.toStr(d.getDeptId())).collect(Collectors.joining(","));
} }

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>() List<SysDept> deptList = deptMapper.selectList(new LambdaQueryWrapper<SysDept>()
.select(SysDept::getDeptId) .select(SysDept::getDeptId)
.apply("find_in_set({0},ancestors) <> 0", user.getDeptId())); .apply("find_in_set({0},ancestors) <> 0", user.getDeptId()));
w.eq("u.dept_id", user.getDeptId()) List<Long> ids = deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList());
.or() ids.add(user.getDeptId());
.in("u.dept_id", deptList.stream().map(SysDept::getDeptId).collect(Collectors.toList())); w.in("u.dept_id", ids);
}); });
return wrapper; return wrapper;
} }