diff --git a/packages/datalib/src/PerspectiveDataLoader.ts b/packages/datalib/src/PerspectiveDataLoader.ts
index bcee5158d..327b0478d 100644
--- a/packages/datalib/src/PerspectiveDataLoader.ts
+++ b/packages/datalib/src/PerspectiveDataLoader.ts
@@ -123,7 +123,7 @@ export class PerspectiveDataLoader {
       groupByColumns: bindingColumns,
       aggregateColumns: [
         {
-          alias: 'acount',
+          alias: 'pergrpsize',
           aggregateFunction: 'count',
         },
       ],
@@ -156,8 +156,8 @@ export class PerspectiveDataLoader {
 
     if (response.errorMessage) return response;
     return response.rows.map(row => ({
-      ...row._id,
-      _perspective_group_size_: parseInt(row.count),
+      ...row,
+      _perspective_group_size_: parseInt(row.pergrpsize),
     }));
   }
 
diff --git a/packages/datalib/src/PerspectiveTreeNode.ts b/packages/datalib/src/PerspectiveTreeNode.ts
index 8d9f7d9c2..6719c1543 100644
--- a/packages/datalib/src/PerspectiveTreeNode.ts
+++ b/packages/datalib/src/PerspectiveTreeNode.ts
@@ -463,6 +463,8 @@ export abstract class PerspectiveTreeNode {
       order: 'ASC' as 'ASC',
     }));
     if (pkColumns) return pkColumns;
+    const uqColumns = (table as CollectionInfo)?.uniqueKey;
+    if (uqColumns?.length >= 1) return uqColumns.map(x => ({ columnName: x.columnName, order: 'ASC' }));
     const columns = (table as TableInfo | ViewInfo)?.columns;
     if (columns) return [{ columnName: columns[0].columnName, order: 'ASC' }];
     return [{ columnName: '_id', order: 'ASC' }];
diff --git a/plugins/dbgate-plugin-mongo/src/backend/driver.js b/plugins/dbgate-plugin-mongo/src/backend/driver.js
index a077469c0..ffb777b63 100644
--- a/plugins/dbgate-plugin-mongo/src/backend/driver.js
+++ b/plugins/dbgate-plugin-mongo/src/backend/driver.js
@@ -305,7 +305,12 @@ const driver = {
       } else if (options.aggregate) {
         let cursor = await collection.aggregate(convertObjectId(convertToMongoAggregate(options.aggregate)));
         const rows = await cursor.toArray();
-        return { rows: rows.map(transformMongoData) };
+        return {
+          rows: rows.map(transformMongoData).map((x) => ({
+            ...x._id,
+            ..._.omit(x, ['_id']),
+          })),
+        };
       } else {
         // console.log('options.condition', JSON.stringify(options.condition, undefined, 2));
         let cursor = await collection.find(convertObjectId(mongoCondition) || {});
@@ -313,7 +318,9 @@ const driver = {
         if (options.skip) cursor = cursor.skip(options.skip);
         if (options.limit) cursor = cursor.limit(options.limit);
         const rows = await cursor.toArray();
-        return { rows: rows.map(transformMongoData) };
+        return {
+          rows: rows.map(transformMongoData),
+        };
       }
     } catch (err) {
       return { errorMessage: err.message };