🐛 fix(duckdb): 修复无主键结果无法安全编辑

- 为 DuckDB 查询结果和表预览补充隐藏 rowid 定位列，允许无主键表安全提交修改
- DataGrid 提交变更时仅将 rowid 用作定位条件，避免把隐藏定位列写回业务字段
- DuckDB ApplyChanges 对 duckdb-rowid 改用未加引号的 rowid 条件，修复更新和删除失效
- 补充前后端回归测试，覆盖 QueryEditor、DataViewer、rowLocator 与 ApplyChanges 链路

frontend/src/utils/rowLocator.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest';
 
 import {
+  DUCKDB_ROWID_LOCATOR_COLUMN,
   ORACLE_ROWID_LOCATOR_COLUMN,
   filterHiddenLocatorColumns,
   resolveEditRowLocator,
@@ -103,6 +104,20 @@ describe('resolveEditRowLocator', () => {
       readOnly: false,
     });
   });
+
+  it('uses DuckDB rowid when no primary or unique key is available', () => {
+    expect(resolveEditRowLocator({
+      dbType: 'duckdb',
+      resultColumns: ['name', DUCKDB_ROWID_LOCATOR_COLUMN],
+      allowDuckDBRowID: true,
+    })).toEqual({
+      strategy: 'duckdb-rowid',
+      columns: ['rowid'],
+      valueColumns: [DUCKDB_ROWID_LOCATOR_COLUMN],
+      hiddenColumns: [DUCKDB_ROWID_LOCATOR_COLUMN],
+      readOnly: false,
+    });
+  });
 });
 
 describe('resolveRowLocatorValues', () => {
@@ -131,6 +146,19 @@ describe('resolveRowLocatorValues', () => {
       error: '定位列 EMAIL 的值为空，无法安全提交修改。',
     });
   });
+
+  it('extracts DuckDB rowid locator values from the original row', () => {
+    const locator = resolveEditRowLocator({
+      dbType: 'duckdb',
+      resultColumns: ['name', DUCKDB_ROWID_LOCATOR_COLUMN],
+      allowDuckDBRowID: true,
+    });
+
+    expect(resolveRowLocatorValues(locator, { name: 'launch', [DUCKDB_ROWID_LOCATOR_COLUMN]: 17 })).toEqual({
+      ok: true,
+      values: { rowid: 17 },
+    });
+  });
 });
 
 describe('filterHiddenLocatorColumns', () => {
@@ -143,4 +171,14 @@ describe('filterHiddenLocatorColumns', () => {
 
     expect(filterHiddenLocatorColumns(['NAME', ORACLE_ROWID_LOCATOR_COLUMN], locator)).toEqual(['NAME']);
   });
+
+  it('removes hidden DuckDB rowid columns from displayed columns', () => {
+    const locator = resolveEditRowLocator({
+      dbType: 'duckdb',
+      resultColumns: ['name', DUCKDB_ROWID_LOCATOR_COLUMN],
+      allowDuckDBRowID: true,
+    });
+
+    expect(filterHiddenLocatorColumns(['name', DUCKDB_ROWID_LOCATOR_COLUMN], locator)).toEqual(['name']);
+  });
 });

frontend/src/utils/rowLocator.ts

@@ -3,8 +3,9 @@ import { resolveUniqueKeyGroupsFromIndexes } from '../components/dataGridCopyIns
 import { isOracleLikeDialect } from './sqlDialect';
 
 export const ORACLE_ROWID_LOCATOR_COLUMN = '__gonavi_oracle_rowid__';
+export const DUCKDB_ROWID_LOCATOR_COLUMN = '__gonavi_duckdb_rowid__';
 
-export type RowLocatorStrategy = 'primary-key' | 'unique-key' | 'oracle-rowid' | 'none';
+export type RowLocatorStrategy = 'primary-key' | 'unique-key' | 'oracle-rowid' | 'duckdb-rowid' | 'none';
 
 export type EditRowLocator = {
   strategy: RowLocatorStrategy;
@@ -22,6 +23,7 @@ export type ResolveEditRowLocatorParams = {
   primaryKeys?: string[];
   indexes?: IndexDefinition[];
   allowOracleRowID?: boolean;
+  allowDuckDBRowID?: boolean;
 };
 
 export type ResolveRowLocatorValuesResult =
@@ -54,6 +56,7 @@ export const resolveEditRowLocator = ({
   primaryKeys = [],
   indexes,
   allowOracleRowID = false,
+  allowDuckDBRowID = false,
 }: ResolveEditRowLocatorParams): EditRowLocator => {
   const columns = (resultColumns || []).map(normalizeColumnName).filter(Boolean);
   const primaryKeyColumns = (primaryKeys || []).map(normalizeColumnName).filter(Boolean);
@@ -93,10 +96,25 @@ export const resolveEditRowLocator = ({
     };
   }
 
+  if (allowDuckDBRowID && String(dbType || '').trim().toLowerCase() === 'duckdb' && hasColumn(columns, DUCKDB_ROWID_LOCATOR_COLUMN)) {
+    const rowIDColumn = findColumn(columns, DUCKDB_ROWID_LOCATOR_COLUMN);
+    return {
+      strategy: 'duckdb-rowid',
+      columns: ['rowid'],
+      valueColumns: [rowIDColumn],
+      hiddenColumns: [rowIDColumn],
+      readOnly: false,
+    };
+  }
+
   if (allowOracleRowID && isOracleLikeDialect(dbType)) {
     return buildReadOnlyLocator('未检测到主键或可用唯一索引，且结果中缺少 Oracle ROWID，无法安全提交修改。');
   }
 
+  if (allowDuckDBRowID && String(dbType || '').trim().toLowerCase() === 'duckdb') {
+    return buildReadOnlyLocator('未检测到主键、可用唯一索引或 DuckDB rowid，无法安全提交修改。');
+  }
+
   return buildReadOnlyLocator('未检测到主键或可用唯一索引，无法安全提交修改。');
 };