diff --git a/docs/v3-workflows.md b/docs/v3-workflows.md
index f50179608e9..45f16891e5d 100644
--- a/docs/v3-workflows.md
+++ b/docs/v3-workflows.md
@@ -11,3 +11,5 @@ The Pro workflows remain independent and operate on the Pro repository's own bra
 Documentation deployment uses the repository secrets `V3_DOCS_ALI_OSS_BUCKET`, `V3_DOCS_ALI_OSS_REGION` and `V3_DOCS_ALI_CDN_DOMAIN` for its destination; keep the existing v2 target secrets unchanged. Documentation and UI Library reuse `DOCS_ALI_OSS_ACCESS_KEY_ID` and `DOCS_ALI_OSS_ACCESS_KEY_SECRET`, with permission to access their respective destinations. UI Library publishes to `nocobase-ui-library` in `cn-beijing`. Both workflows publish on matching pushes to `v3-develop`; manual runs publish only when `publish` is enabled. No additional migration variable is required, and pull requests remain build-only.
 
 Implementation files, scripts and application dependencies stay on the v3 branches. These entries need only the workflow token's Actions permission to dispatch the same workflow on `v3-develop`; they do not check out or execute v3 application code on `main`.
+
+Pull requests changing only `docs/**` skip v3 Quality, Changeset Check and Guard Main. The Docs workflow checks and builds without publishing; matching pushes to `v3-develop` build and publish, while manual publishing remains available. Quality also skips documentation-only pushes. Changes outside `docs/` retain the normal checks, and Preview routing remains separately managed by the bot.
diff --git a/packages/core/database/src/__tests__/eager-loading/eager-loading-tree.test.ts b/packages/core/database/src/__tests__/eager-loading/eager-loading-tree.test.ts
index 5a7283151ac..c8cd465f900 100644
--- a/packages/core/database/src/__tests__/eager-loading/eager-loading-tree.test.ts
+++ b/packages/core/database/src/__tests__/eager-loading/eager-loading-tree.test.ts
@@ -7,7 +7,7 @@
  * For more information, please refer to: https://www.nocobase.com/agreement.
  */
 
-import Database, { createMockDatabase } from '@nocobase/database';
+import Database, { createMockDatabase, DataTypes } from '@nocobase/database';
 import { EagerLoadingTree } from '../../eager-loading/eager-loading-tree';
 
 const skipSqlite = process.env.DB_DIALECT == 'sqlite' ? it.skip : it;
@@ -621,67 +621,147 @@ describe('Eager loading tree', () => {
     expect(u1.get('posts')[0].get('tags')[0].get('tagCategory').get('name')).toBe('c1');
   });
 
-  it.each(['mssql', 'mysql', 'mariadb'])(
-    'should group direct root order fields for %s relation filters without grouping association order fields',
-    async (dialect) => {
-      const User = db.collection({
-        name: 'users',
-        fields: [
-          { type: 'string', name: 'name' },
-          { type: 'hasMany', name: 'posts', target: 'posts', foreignKey: 'userId' },
-        ],
-      });
+  it('should group direct root order fields for relation filters without grouping association order fields', async () => {
+    const User = db.collection({
+      name: 'users',
+      fields: [
+        { type: 'string', name: 'name' },
+        { type: 'hasMany', name: 'posts', target: 'posts', foreignKey: 'userId' },
+      ],
+    });
 
-      const Post = db.collection({
-        name: 'posts',
-        fields: [{ type: 'string', name: 'title' }],
-      });
+    const Post = db.collection({
+      name: 'posts',
+      fields: [{ type: 'string', name: 'title' }],
+    });
 
-      await db.sync();
+    await db.sync();
 
-      const rootInstance = User.model.build({ id: 1, name: 'user1' });
-      const rootFindAllSpy = vi
-        .spyOn(User.model, 'findAll')
-        .mockResolvedValueOnce([rootInstance])
-        .mockResolvedValueOnce([rootInstance]);
-      const childFindAllSpy = vi.spyOn(Post.model, 'findAll').mockResolvedValue([]);
-      vi.spyOn(db, 'inDialect').mockImplementation((...dialects: string[]) => dialects.includes(dialect));
+    const rootInstance = User.model.build({ id: 1, name: 'user1' });
+    const rootFindAllSpy = vi
+      .spyOn(User.model, 'findAll')
+      .mockResolvedValueOnce([rootInstance])
+      .mockResolvedValueOnce([rootInstance]);
+    const childFindAllSpy = vi.spyOn(Post.model, 'findAll').mockResolvedValue([]);
 
-      const rootOrder = [
-        ['name', 'ASC'],
-        [{ model: Post.model, as: 'posts' }, 'title', 'ASC'],
-      ];
-      const rootQueryOptions = {
-        include: [
-          {
-            association: 'posts',
-            attributes: ['id', 'title'],
-            where: { title: 'matched' },
-          },
-        ],
-        filter: { posts: { title: { $includes: 'matched' } } },
-        order: rootOrder,
-      };
-      const eagerLoadingTree = EagerLoadingTree.buildFromSequelizeOptions({
-        model: User.model,
-        rootAttributes: ['id', 'name'],
-        rootOrder,
-        includeOption: rootQueryOptions.include,
-        db,
-        rootQueryOptions,
-      });
+    const rootOrder = [
+      ['name', 'ASC'],
+      [{ model: Post.model, as: 'posts' }, 'title', 'ASC'],
+    ];
+    const rootQueryOptions = {
+      include: [
+        {
+          association: 'posts',
+          attributes: ['id', 'title'],
+          where: { title: 'matched' },
+        },
+      ],
+      filter: { posts: { title: { $includes: 'matched' } } },
+      order: rootOrder,
+    };
+    const eagerLoadingTree = EagerLoadingTree.buildFromSequelizeOptions({
+      model: User.model,
+      rootAttributes: ['id', 'name'],
+      rootOrder,
+      includeOption: rootQueryOptions.include,
+      db,
+      rootQueryOptions,
+    });
 
-      await eagerLoadingTree.load();
+    await eagerLoadingTree.load();
 
-      expect(rootFindAllSpy).toHaveBeenNthCalledWith(
-        1,
-        expect.objectContaining({
-          group: ['users.id', 'users.name'],
-        }),
-      );
-      expect(childFindAllSpy).toHaveBeenCalledTimes(1);
-    },
-  );
+    expect(rootFindAllSpy).toHaveBeenNthCalledWith(
+      1,
+      expect.objectContaining({
+        group: ['users.id', 'users.name'],
+      }),
+    );
+    expect(childFindAllSpy).toHaveBeenCalledTimes(1);
+  });
+
+  it('should filter by a to-many relation sorted by root fields when the table has no primary key constraint', async () => {
+    // External tables or views may have no primary key constraint, so PostgreSQL cannot infer root columns from the id.
+    const Dept = db.collection({
+      name: 'depts',
+      autoGenId: false,
+      timestamps: false,
+      fields: [
+        { type: 'integer', name: 'id', primaryKey: true },
+        { type: 'string', name: 'name' },
+      ],
+    });
+    const Through = db.collection({
+      name: 'operators_depts',
+      autoGenId: false,
+      timestamps: false,
+      fields: [
+        { type: 'integer', name: 'operator_id' },
+        { type: 'integer', name: 'dept_id' },
+      ],
+    });
+    const Operator = db.collection({
+      name: 'operators',
+      autoGenId: false,
+      timestamps: false,
+      fields: [
+        { type: 'integer', name: 'id', primaryKey: true },
+        { type: 'string', name: 'name' },
+        {
+          type: 'belongsToMany',
+          name: 'depts',
+          target: 'depts',
+          through: 'operators_depts',
+          foreignKey: 'operator_id',
+          otherKey: 'dept_id',
+          sourceKey: 'id',
+          targetKey: 'id',
+        },
+      ],
+    });
+
+    await db.prepare();
+
+    const queryInterface = db.sequelize.getQueryInterface();
+    await queryInterface.createTable(Operator.getTableNameWithSchema(), {
+      id: { type: DataTypes.INTEGER },
+      name: { type: DataTypes.STRING },
+    });
+    await queryInterface.createTable(Dept.getTableNameWithSchema(), {
+      id: { type: DataTypes.INTEGER },
+      name: { type: DataTypes.STRING },
+    });
+    await queryInterface.createTable(Through.getTableNameWithSchema(), {
+      operator_id: { type: DataTypes.INTEGER },
+      dept_id: { type: DataTypes.INTEGER },
+    });
+
+    await Operator.model.bulkCreate([
+      { id: 1, name: 'c' },
+      { id: 2, name: 'a' },
+      { id: 3, name: 'b' },
+    ]);
+    await Dept.model.bulkCreate([
+      { id: 1, name: 'A' },
+      { id: 2, name: 'B' },
+    ]);
+    await Through.model.bulkCreate([
+      { operator_id: 1, dept_id: 1 },
+      { operator_id: 1, dept_id: 2 },
+      { operator_id: 2, dept_id: 1 },
+      { operator_id: 3, dept_id: 2 },
+    ]);
+
+    const [rows, count] = await db.getRepository('operators').findAndCount({
+      filter: { depts: { name: { $includes: 'A' } } },
+      appends: ['depts'],
+      sort: ['name'],
+      limit: 1,
+      offset: 0,
+    });
+
+    expect(count).toBe(2);
+    expect(rows.map((row) => row.get('name'))).toEqual(['a']);
+  });
 
   it('should use bind parameters when loading parent recursively with string primary keys', async () => {
     const payload = `root') UNION ALL SELECT 'pwned', NULL WHERE ('1'='1`;
diff --git a/packages/core/database/src/eager-loading/eager-loading-tree.ts b/packages/core/database/src/eager-loading/eager-loading-tree.ts
index 91a1262e6d3..22822459fbd 100644
--- a/packages/core/database/src/eager-loading/eager-loading-tree.ts
+++ b/packages/core/database/src/eager-loading/eager-loading-tree.ts
@@ -289,13 +289,13 @@ export class EagerLoadingTree {
             throw new Error(`Model ${node.model.name} does not have primary key`);
           }
 
-          const group = [`${node.model.name}.${primaryKeyField}`];
-
-          if (this.db.inDialect('mssql') || this.db.isMySQLCompatibleDialect()) {
-            // Strict GROUP BY dialects reject root ORDER BY fields that are not grouped. Include direct root order
-            // fields without changing the root row cardinality; to-many association order fields stay excluded.
-            group.push(...getRootModelOrderFields(node).map((field) => `${node.model.name}.${field}`));
-          }
+          // Strict GROUP BY dialects (MSSQL, MySQL ONLY_FULL_GROUP_BY, and PostgreSQL when the table has no real primary
+          // key constraint, e.g. external tables or views) reject root ORDER BY fields that are not grouped. Include direct
+          // root order fields without changing the root row cardinality; to-many association order fields stay excluded.
+          const group = [
+            `${node.model.name}.${primaryKeyField}`,
+            ...getRootModelOrderFields(node).map((field) => `${node.model.name}.${field}`),
+          ];
 
           // find the paginated root ids after deduplication
           const ids = (
diff --git a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/AssociatedConfig.test.tsx b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/AssociatedConfig.test.tsx
index 09f0884e9ed..3e8288145f9 100644
--- a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/AssociatedConfig.test.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/AssociatedConfig.test.tsx
@@ -12,6 +12,7 @@ import { act, render, waitFor } from '@testing-library/react';
 import { Form } from 'antd';
 import type { CascaderProps } from 'antd';
 import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { getCollectionFieldOptions } from '../../../../plugin-workflow/src/client-v2/canvas/collectionFieldOptions';
 import { AssociatedConfig } from '../components/AssociatedConfig';
 
 type MockField = {
@@ -412,4 +413,71 @@ describe('AssociatedConfig', () => {
       expect(getForm()?.getFieldValue(['config', 'params', 'filter'])).toBeNull();
     });
   });
+
+  it.each([
+    ['{{$context.data.id}}', ['$context', 'data', 'comments']],
+    ['{{$context.data.author0.id}}', ['$context', 'data', 'author0', 'comments']],
+  ])('restores %s without eagerly traversing unrelated or target collections', async (associatedKey, selectedPath) => {
+    const getCollectionAllFields = vi.fn((collection: string) => [
+      ...Array.from({ length: 8 }, (_, index) => ({
+        collectionName: collection,
+        name: `author${index}`,
+        foreignKey: `author${index}Id`,
+        target: collection,
+        type: 'belongsTo',
+        interface: 'm2o',
+      })),
+      {
+        collectionName: collection,
+        name: 'comments',
+        target: 'comments',
+        type: 'hasMany',
+        interface: 'o2m',
+      },
+    ]);
+    const trigger = mockWorkflowPlugin.triggers.get();
+    const useVariables = vi.spyOn(trigger, 'useVariables').mockImplementation(
+      (_config, options) =>
+        getCollectionFieldOptions({
+          ...options,
+          fields: [{ name: 'data', type: 'hasOne', target: 'posts', collectionName: 'posts' }],
+          compile: (key: string) => key,
+          collectionManager: { getCollectionAllFields },
+        }) as ReturnType<typeof trigger.useVariables>,
+    );
+    const getTrigger = vi.spyOn(mockWorkflowPlugin.triggers, 'get').mockReturnValue(trigger);
+
+    try {
+      renderWithForm({
+        config: {
+          association: {
+            associatedCollection: 'posts',
+            associatedKey,
+            name: 'comments',
+          },
+          collection: 'comments',
+        },
+      });
+
+      await waitFor(() => {
+        expect(getTriggerOptions().triggerDataOptions.some((option) => option.value === 'comments')).toBe(true);
+      });
+
+      expect(cascaderProps.current?.value).toEqual(selectedPath);
+      expect(getCollectionAllFields.mock.calls.length).toBe(selectedPath.length - 2);
+      expect(getCollectionAllFields.mock.calls.every(([collection]) => collection === 'posts')).toBe(true);
+      expect(findOption(getTriggerOptions().triggerDataOptions, 'author1').children).toBeUndefined();
+      let options = getCascaderOptions();
+      let selectedOption: MockOption | undefined;
+      for (const key of selectedPath) {
+        selectedOption = findOption(options, key);
+        options = selectedOption.children ?? [];
+      }
+      expect(selectedOption?.label).toBe('comments');
+      expect(selectedOption?.children).toBeUndefined();
+    } finally {
+      useVariables.mockRestore();
+      getTrigger.mockRestore();
+    }
+  });
 });
diff --git a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/aggregateFieldset.test.tsx b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/aggregateFieldset.test.tsx
index df1571532c9..b4c5e4b6823 100644
--- a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/aggregateFieldset.test.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/__tests__/aggregateFieldset.test.tsx
@@ -9,7 +9,7 @@
 
 import React from 'react';
 import { describe, expect, it, vi } from 'vitest';
-import { fireEvent, render, screen, waitFor } from '@testing-library/react';
+import { act, cleanup, fireEvent, render, screen, waitFor } from '@testing-library/react';
 import { Form } from 'antd';
 import { AggregateFieldset } from '../components/AggregateFieldset';
 
@@ -178,7 +178,7 @@ describe('AggregateFieldset', () => {
     });
   });
 
-  it('keeps showing fields from an associated collection after the collection field is unmounted', async () => {
+  it('keeps showing fields from an associated collection while the collection selector is hidden', async () => {
     const getForm = renderWithForm({
       config: {
         aggregator: 'count',
@@ -194,4 +194,47 @@ describe('AggregateFieldset', () => {
       expect(getForm()?.getFieldValue(['config', 'collection'])).toBe('comments');
     });
   });
+
+  it('saves the associated collection and restores aggregate fields when reopening the configuration', async () => {
+    const initialValues = {
+      config: {
+        aggregator: 'count',
+        associated: true,
+        collection: 'comments',
+        association: {
+          name: 'comments',
+          associatedCollection: 'posts',
+          associatedKey: '{{$context.data.id}}',
+        },
+        params: {
+          field: 'id',
+          distinct: true,
+          filter: { id: { $notNull: true } },
+        },
+        precision: 2,
+      },
+    };
+    const getForm = renderWithForm(initialValues);
+
+    await waitFor(() => {
+      expect(screen.getByLabelText('field')).toHaveValue('id');
+    });
+
+    let savedValues: typeof initialValues | undefined;
+    await act(async () => {
+      savedValues = await getForm()?.validateFields();
+    });
+
+    expect(savedValues).toEqual(initialValues);
+
+    cleanup();
+    renderWithForm(savedValues);
+
+    await waitFor(() => {
+      expect(screen.getByLabelText('field')).toHaveValue('id');
+      expect(screen.getByLabelText('field')).toHaveAttribute('data-collection', 'comments');
+      expect(screen.getByTestId('filter')).toHaveAttribute('data-collection', 'comments');
+      expect(screen.getByRole('checkbox', { name: 'Distinct' })).toBeChecked();
+    });
+  });
 });
diff --git a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AggregateFieldset.tsx b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AggregateFieldset.tsx
index ad0fde2ecea..b8adc54e405 100644
--- a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AggregateFieldset.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AggregateFieldset.tsx
@@ -31,8 +31,6 @@ function AggregateFieldSelect({ collection }: { collection?: string }) {
 
 function AggregateParamsFields() {
   const t = useT();
-  // The collection field is conditionally rendered when aggregating an associated collection. Keep watching its
-  // value after that field is unmounted so the aggregate field and filter selectors can still load the target table.
   const collection = Form.useWatch(['config', 'collection'], { preserve: true });
   const aggregator = Form.useWatch(['config', 'aggregator']);
 
@@ -105,16 +103,21 @@ export function AggregateFieldset() {
             >
               <AssociatedConfig />
             </Form.Item>
-          ) : (
-            <Form.Item name={['config', 'collection']} label={t('Data of collection')} rules={[{ required: true }]}>
-              <CollectionCascader
-                onChange={() => {
-                  form.setFieldValue(['config', 'params', 'field'], null);
-                  form.setFieldValue(['config', 'params', 'filter'], null);
-                }}
-              />
-            </Form.Item>
-          )}
+          ) : null}
+          {/* Keep the target collection registered so validateFields includes it when saving associated aggregates. */}
+          <Form.Item
+            name={['config', 'collection']}
+            label={t('Data of collection')}
+            hidden={associated}
+            rules={[{ required: true }]}
+          >
+            <CollectionCascader
+              onChange={() => {
+                form.setFieldValue(['config', 'params', 'field'], null);
+                form.setFieldValue(['config', 'params', 'filter'], null);
+              }}
+            />
+          </Form.Item>
         </Col>
         <Col span={12}>
           <AggregateFieldSelect collection={collection} />
diff --git a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AssociatedConfig.tsx b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AssociatedConfig.tsx
index 428a7aa5d65..036a527abbb 100644
--- a/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AssociatedConfig.tsx
+++ b/packages/plugins/@nocobase/plugin-workflow-aggregate/src/client-v2/components/AssociatedConfig.tsx
@@ -144,6 +144,10 @@ function createRootOption({
   };
 }
 
+function matchAssociationBranch(field: CollectionTriggerField) {
+  return matchToManyField(field) || ['belongsTo', 'hasOne', 'belongsToArray'].includes(field.type ?? '');
+}
+
 function useAssociatedFields() {
   const flowEngine = useFlowEngine();
   const current = useNodeContext();
@@ -153,7 +157,9 @@ function useAssociatedFields() {
     flowEngine.context.app.pm.get('@nocobase/plugin-workflow')) as WorkflowPluginLike | undefined;
   const compile = (key: string, options?: Record<string, unknown>) => flowEngine.context.t(key, options);
   const variableOptions: UseVariableOptions = {
-    types: [matchToManyField],
+    // Match intermediate relations directly so the variable builder does not recursively search their target tables.
+    // Only to-many fields are committed by onChange; other relations remain lazy navigation branches.
+    types: [matchAssociationBranch],
     appends: null,
     depth: 4,
   };
@@ -265,13 +271,16 @@ export function AssociatedConfig({
       let currentOptions = options;
       let currentOption: AssociatedCascaderOption | undefined;
       let resolved = true;
-      for (const key of selectedPath) {
+      for (const [index, key] of selectedPath.entries()) {
         currentOption = currentOptions.find((option) => option.value === key);
         if (!currentOption) {
           resolved = false;
           break;
         }
-        await loadOptionChildren(currentOption);
+        // The final relation already has its label and field metadata; its target fields are not needed for display.
+        if (index < selectedPath.length - 1) {
+          await loadOptionChildren(currentOption);
+        }
         currentOptions = currentOption.children ?? [];
       }