Merge remote-tracking branch 'origin/developing' into developing

CHANGELOG.md

@@ -1,3 +1,11 @@
+# 2.0.4
+
+## 🐞 Bug Fixes
+- Default return alias for returned results [Issue #270](https://github.com/chat2db/Chat2DB/issues/270)
+
+## 🐞 问题修复
+- 返回结果默认返回别名 [Issue #270](https://github.com/chat2db/Chat2DB/issues/270)
+
 # 2.0.4
 ## ⭐ New Features
 - Support DB2 database

chat2db-client/src/components/Iconfont/index.less

@@ -1,9 +1,9 @@
+/* 在线链接服务仅供平台体验和调试使用，平台不承诺服务的稳定性，企业客户需下载字体包自行发布使用并做好备份。 */
 @font-face {
-  font-family: 'iconfont';
-  /* Project id 3633546 */
-  src: url('../../assets/font/iconfont.woff2') format('woff2'),
-    url('../../assets/font/iconfont.woff') format('woff'),
-    url('../../assets/font/iconfont.ttf') format('truetype');
+  font-family: 'iconfont';  /* Project id 3633546 */
+  src: url('//at.alicdn.com/t/c/font_3633546_fu54vhe509d.woff2?t=1689606758277') format('woff2'),
+       url('//at.alicdn.com/t/c/font_3633546_fu54vhe509d.woff?t=1689606758277') format('woff'),
+       url('//at.alicdn.com/t/c/font_3633546_fu54vhe509d.ttf?t=1689606758277') format('truetype');
 }
 
 .iconfont {

chat2db-client/src/constants/database.ts

@@ -80,14 +80,14 @@ export const databaseMap: {
     name: 'Presto',
     img: moreDBLogo,
     code: DatabaseTypeCode.PRESTO,
-     port: 8080,
+    //  port: 8080,
     icon: '\ue60b',
   },
   [DatabaseTypeCode.DB2]: {
     name: 'DB2',
     img: moreDBLogo,
     code: DatabaseTypeCode.DB2,
-     port: 50000,
+    //  port: 50000,
     icon: '\ue60a',
   },
   [DatabaseTypeCode.OCEANBASE]: {

chat2db-client/src/i18n/en-us/setting.ts

@@ -2,7 +2,7 @@ export default {
   'setting.title.setting': 'Setting',
   'setting.nav.basic': 'Basic',
   'setting.nav.customAi': 'Custom Ai',
-  'setting.nav.proxy': 'Proxy',
+  'setting.nav.proxy': 'Service Path',
   'setting.nav.aboutUs': 'About Us',
   'setting.title.backgroundColor': 'Background Color',
   'setting.title.themeColor': 'Theme Color',

chat2db-client/src/i18n/zh-cn/setting.ts

@@ -2,7 +2,7 @@ export default {
   'setting.title.setting': '设置',
   'setting.nav.basic': '基础设置',
   'setting.nav.customAi': '自定义AI',
-  'setting.nav.proxy': '代理设置',
+  'setting.nav.proxy': '服务端地址',
   'setting.nav.aboutUs': '关于我们',
   'setting.title.backgroundColor': '背景色',
   'setting.title.themeColor': '主题色',

chat2db-client/src/models/connection.ts

@@ -48,13 +48,16 @@ const ConnectionModel: IConnectionModelType = {
   },
 
   effects: {
-    *fetchConnectionList(_, { call, put }) {
+    *fetchConnectionList({ callback }, { call, put }) {
       try {
         const res = (yield connectionService.getList({ pageNo: 1, pageSize: 999 })) as IPageResponse<IConnectionDetails>;
         yield put({
           type: 'setConnectionList',
           payload: res.data,
         });
+        if (callback && typeof callback === 'function') {
+          callback(res);
+        }
       }
       catch {
 

chat2db-client/src/pages/main/connection/index.less

@@ -14,7 +14,7 @@
   width: 220px;
   overflow: hidden;
   background-color: var(--color-bg-elevated);
-  border: 1px solid var(--color-border-secondary);
+  border-right: 1px solid var(--color-border-secondary);
   border-top: 0px;
   border-bottom: 0px;
 }

chat2db-client/src/pages/main/connection/index.tsx

@@ -37,7 +37,7 @@ function Connections(props: IProps) {
     getConnectionList();
   }, []);
 
-  const getConnectionList = async () => {
+  const getConnectionList = () => {
     dispatch({
       type: 'connection/fetchConnectionList',
     });
@@ -133,6 +133,8 @@ function Connections(props: IProps) {
       <div ref={volatileRef} className={styles.layoutLeft}>
         <div className={styles.pageTitle}>{i18n('connection.title.connections')}</div>
         {renderMenu()}
+        {
+          curConnection && Object.keys(curConnection).length &&
           <Button
             type="primary"
             className={styles.addConnection}
@@ -142,6 +144,7 @@ function Connections(props: IProps) {
           >
             {i18n('connection.button.addConnection')}
           </Button>
+        }
       </div>
       <div className={styles.layoutRight}>
         {curConnection && Object.keys(curConnection).length ? (

chat2db-client/src/pages/main/dashboard/index.less

@@ -10,7 +10,7 @@
   width: 220px;
   height: 100%;
   overflow: hidden;
-  border: 1px solid var(--color-border-secondary);
+  border-right: 1px solid var(--color-border-secondary);
   border-top: 0px;
   border-bottom: 0px;
 }

chat2db-client/src/pages/main/index.less

@@ -16,6 +16,7 @@
   align-items: center;
   width: 68px;
   background-color: var(--color-bg-elevated);
+  border-right: 1px solid var(--color-border-secondary);
   user-select: none;
   overflow: hidden;
 }

chat2db-client/src/pages/main/workspace/components/WorkspaceHeader/index.less

@@ -0,0 +1,47 @@
+@import '../../../../../styles/var.less';
+
+.workspaceHeader{
+  flex-shrink: 0;
+  display: flex;
+  align-items: center;
+  padding-left: 10px;
+  background-color: var(--color-bg-elevated);
+  border-bottom: 1px solid var(--color-border-secondary);
+}
+
+.databaseLogo{
+  margin-right: 10px;
+  overflow: hidden;
+  height: 18px;
+  width: 18px;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  .refreshBox{
+    cursor: pointer;
+  }
+  .spin{
+    transform: scale(0.6);
+  }
+}
+
+.crumbsItem{
+  display: flex;
+  align-items: center;
+  height: 28px;
+  cursor: pointer;
+  &:hover{
+    color: var(--color-primary);
+  }
+
+  .typeIcon{
+    margin-right: 6px;
+  }
+  
+  .arrow{
+    font-size: 10px;
+    margin: 0px 10px;
+    transform: translateY(1px);
+  }
+}
+

chat2db-client/src/pages/main/workspace/components/WorkspaceHeader/index.tsx

@@ -0,0 +1,148 @@
+import React, { memo, useEffect, useMemo, useState } from 'react';
+import { connect } from 'umi';
+import { IConnectionModelType } from '@/models/connection';
+import { IWorkspaceModelType } from '@/models/workspace';
+import styles from './index.less';
+import classnames from 'classnames';
+import { Cascader, Spin } from 'antd';
+import Iconfont from '@/components/Iconfont';
+import { databaseMap } from '@/constants';
+import { useSafeState } from 'ahooks';
+
+
+interface IProps {
+  className?: string;
+  cascaderOptions: any;
+  connectionModel: IConnectionModelType['state'];
+  workspaceModel: IWorkspaceModelType['state'];
+  dispatch: any;
+}
+
+const WorkspaceHeader = memo<IProps>((props) => {
+  const { className, cascaderOptions, connectionModel, workspaceModel, dispatch } = props;
+  const { connectionList, curConnection } = connectionModel;
+  const { curWorkspaceParams } = workspaceModel;
+  const [curSchemaOptions, setCurSchemaOptions] = useState<any>([]);
+  const [cascaderLoading, setCascaderLoading] = useState(false);
+  const connectionListOptions = useMemo(() => {
+    return connectionList?.map(t => {
+      return {
+        value: t.id,
+        label: t.alias
+      }
+    })
+  }, [connectionList])
+
+  useEffect(() => {
+    getConnectionList();
+  }, []);
+
+  const getConnectionList = () => {
+    setCascaderLoading(true)
+    dispatch({
+      type: 'connection/fetchConnectionList',
+      callback: () => {
+        setTimeout(() => {
+          setCascaderLoading(false)
+        }, 200);
+      }
+    });
+  };
+
+  function connectionChange(id: any, data: any) {
+    connectionList.map(t => {
+      if (t.id === id[0]) {
+        dispatch({
+          type: 'connection/setCurConnection',
+          payload: t
+        });
+      }
+    })
+  }
+
+  const databaseChange: any = (valueArr: any, selectedOptions: any) => {
+
+    const curWorkspaceParams = {
+      dataSourceId: curConnection?.id,
+      databaseSourceName: curConnection?.alias,
+      databaseName: selectedOptions[0].value,
+      schemaName: selectedOptions?.[0]?.next?.[0]?.value,
+      databaseType: curConnection?.type,
+    };
+
+    dispatch({
+      type: 'workspace/setCurWorkspaceParams',
+      payload: curWorkspaceParams,
+    });
+
+    setCurSchemaOptions(selectedOptions[0].next)
+  };
+
+  const schemaChange: any = (valueArr: any, selectedOptions: any) => {
+    dispatch({
+      type: 'workspace/setCurWorkspaceParams',
+      payload: { ...curWorkspaceParams, schemaName: selectedOptions[0].value },
+    });
+  }
+
+  function handelRefresh() {
+    getConnectionList()
+  }
+
+  return <div className={styles.workspaceHeader}>
+    <div className={styles.databaseLogo}>
+      {curConnection?.type ?
+        <div className={styles.refreshBox} onClick={handelRefresh}>
+          {cascaderLoading ? <Spin className={styles.spin} /> : <Iconfont className={styles.typeIcon} code={databaseMap[curConnection.type]?.icon} />}
+        </div>
+        :
+        <Iconfont className={styles.typeIcon} code="&#xe640;" />}
+    </div>
+    <Cascader
+      popupClassName={styles.cascaderPopup}
+      options={connectionListOptions}
+      onChange={connectionChange}
+      bordered={false}
+    >
+      <div className={styles.crumbsItem}>
+        <div>{curConnection?.alias}</div>
+        <Iconfont className={styles.arrow} code="&#xe641;" />
+      </div>
+    </Cascader>
+
+    <Cascader
+      popupClassName={styles.cascaderPopup}
+      options={cascaderOptions}
+      onChange={databaseChange}
+      bordered={false}
+    >
+      <div className={styles.crumbsItem}>
+        <div>{curWorkspaceParams.databaseName}</div>
+        {
+          !!curSchemaOptions.length && <Iconfont className={styles.arrow} code="&#xe608;" />
+        }
+      </div>
+    </Cascader>
+    {
+      !!curSchemaOptions.length &&
+      <Cascader
+        popupClassName={styles.cascaderPopup}
+        options={curSchemaOptions}
+        onChange={schemaChange}
+        bordered={false}
+      >
+        <div className={styles.crumbsItem}>
+          <div>{curWorkspaceParams.schemaName}</div>
+        </div>
+      </Cascader>
+    }
+
+  </div >
+})
+
+export default connect(
+  ({ connection, workspace }: { connection: IConnectionModelType; workspace: IWorkspaceModelType }) => ({
+    connectionModel: connection,
+    workspaceModel: workspace,
+  }),
+)(WorkspaceHeader);

chat2db-client/src/pages/main/workspace/components/WorkspaceLeft/index.tsx

@@ -81,9 +81,9 @@ const WorkspaceLeft = memo<IProps>(function (props) {
 
   return (
     <div className={classnames(styles.box, className)}>
-      <div className={styles.header}>
+      {/* <div className={styles.header}>
         <RenderSelectDatabase cascaderOptions={cascaderOptions} />
-      </div>
+      </div> */}
       <RenderSaveBox></RenderSaveBox>
       <Divider className={styles.divider} />
       <RenderTableBox />
@@ -109,82 +109,81 @@ interface IProps {
   dispatch: any;
 }
 
-const RenderSelectDatabase = dvaModel(function (props: IProps) {
-  const { connectionModel, workspaceModel, dispatch, cascaderOptions } = props;
-  const { curWorkspaceParams } = workspaceModel;
-  const { curConnection } = connectionModel;
-  const [currentSelectedName, setCurrentSelectedName] = useState('');
-  const [cascaderLoading, setCascaderLoading] = useState(false)
+// const RenderSelectDatabase = dvaModel(function (props: IProps) {
+//   const { connectionModel, workspaceModel, dispatch, cascaderOptions } = props;
+//   const { curWorkspaceParams } = workspaceModel;
+//   const { curConnection } = connectionModel;
+//   const [currentSelectedName, setCurrentSelectedName] = useState('');
+//   const [cascaderLoading, setCascaderLoading] = useState(false);
 
+//   useEffect(() => {
+//     if (curWorkspaceParams) {
+//       const { databaseName, schemaName, databaseSourceName } = curWorkspaceParams;
+//       const currentSelectedArr = [databaseSourceName, databaseName, schemaName].filter((t) => t);
+//       setCurrentSelectedName(currentSelectedArr.join('/'));
+//     }
+//   }, [curWorkspaceParams]);
 
-  useEffect(() => {
-    if (curWorkspaceParams) {
-      const { databaseName, schemaName, databaseSourceName } = curWorkspaceParams;
-      const currentSelectedArr = [databaseSourceName, databaseName, schemaName].filter((t) => t);
-      setCurrentSelectedName(currentSelectedArr.join('/'));
-    }
-  }, [curWorkspaceParams]);
+//   const onChange: any = (valueArr: any, selectedOptions: any) => {
+//     let labelArr: string[] = [];
+//     labelArr = selectedOptions.map((t: any) => {
+//       return t.label;
+//     });
 
-  const onChange: any = (valueArr: any, selectedOptions: any) => {
-    let labelArr: string[] = [];
-    labelArr = selectedOptions.map((t: any) => {
-      return t.label;
-    });
+//     const curWorkspaceParams = {
+//       dataSourceId: curConnection?.id,
+//       databaseSourceName: curConnection?.alias,
+//       databaseName: labelArr[0],
+//       schemaName: labelArr[1],
+//       databaseType: curConnection?.type,
+//     };
 
-    const curWorkspaceParams = {
-      dataSourceId: curConnection?.id,
-      databaseSourceName: curConnection?.alias,
-      databaseName: labelArr[0],
-      schemaName: labelArr[1],
-      databaseType: curConnection?.type,
-    };
+//     dispatch({
+//       type: 'workspace/setCurWorkspaceParams',
+//       payload: curWorkspaceParams,
+//     });
+//   };
 
-    dispatch({
-      type: 'workspace/setCurWorkspaceParams',
-      payload: curWorkspaceParams,
-    });
-  };
+//   const dropdownRender = (menus: React.ReactNode) => <div>{menus}</div>;
 
-  const dropdownRender = (menus: React.ReactNode) => <div>{menus}</div>;
+//   function handleRefresh() {
+//     setCascaderLoading(true)
+//     dispatch({
+//       type: 'workspace/fetchDatabaseAndSchema',
+//       payload: {
+//         dataSourceId: curConnection?.id,
+//         refresh: true
+//       },
+//       callback: () => {
+//         setCascaderLoading(false)
+//       }
+//     });
+//   }
 
-  function handleRefresh() {
-    setCascaderLoading(true)
-    dispatch({
-      type: 'workspace/fetchDatabaseAndSchema',
-      payload: {
-        dataSourceId: curConnection?.id,
-        refresh: true
-      },
-      callback: () => {
-        setCascaderLoading(false)
-      }
-    });
-  }
-
-  return (
-    <div className={styles.selectDatabaseBox}>
-      <Cascader
-        popupClassName={styles.cascaderPopup}
-        options={cascaderOptions}
-        onChange={onChange}
-        bordered={false}
-        dropdownRender={dropdownRender}
-      >
-        <div className={styles.currentDatabase}>
-          <div className={styles.name}>
-            {currentSelectedName || <span style={{ opacity: 0.8 }}>{i18n('workspace.cascader.placeholder')}</span>}{' '}
-          </div>
-          <Iconfont code="&#xe608;" />
-        </div>
-      </Cascader>
-      <div className={styles.otherOperations}>
-        <div className={classnames(styles.refreshIconBox, styles.iconBox)} onClick={handleRefresh}>
-          {cascaderLoading ? <Spin /> : <Iconfont code="&#xec08;" />}
-        </div>
-      </div>
-    </div>
-  );
-});
+//   return (
+//     <div className={styles.selectDatabaseBox}>
+//       <Cascader
+//         popupClassName={styles.cascaderPopup}
+//         options={cascaderOptions}
+//         onChange={onChange}
+//         bordered={false}
+//         dropdownRender={dropdownRender}
+//       >
+//         <div className={styles.currentDatabase}>
+//           <div className={styles.name}>
+//             {currentSelectedName || <span style={{ opacity: 0.8 }}>{i18n('workspace.cascader.placeholder')}</span>}{' '}
+//           </div>
+//           <Iconfont code="&#xe608;" />
+//         </div>
+//       </Cascader>
+//       <div className={styles.otherOperations}>
+//         <div className={classnames(styles.refreshIconBox, styles.iconBox)} onClick={handleRefresh}>
+//           {cascaderLoading ? <Spin /> : <Iconfont code="&#xec08;" />}
+//         </div>
+//       </div>
+//     </div>
+//   );
+// });
 
 const RenderTableBox = dvaModel(function (props: any) {
   const { workspaceModel, dispatch, tableLoading } = props;
@@ -375,7 +374,7 @@ const RenderSaveBox = dvaModel(function (props: any) {
         type: 'workspace/fetchGetSavedConsole',
         payload: {
           status: ConsoleStatus.RELEASE,
-          orderByDesc: false,
+          orderByDesc: Boolean,
           ...curWorkspaceParams
         },
         callback: (res: any) => {

chat2db-client/src/pages/main/workspace/index.less

@@ -1,15 +1,21 @@
 @import '../../../styles/var.less';
 
-.box {
+.workspace {
   width: 100%;
   height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.workspaceMain{
+  height: 100%;
 }
 
 .boxLeft {
   width: 220px;
   height: 100%;
   overflow: hidden;
-  border: 1px solid var(--color-border-secondary);
+  border-right: 1px solid var(--color-border-secondary);
   border-top: 0px;
   border-bottom: 0px;
 }

chat2db-client/src/pages/main/workspace/index.tsx

@@ -4,10 +4,12 @@ import styles from './index.less';
 import DraggableContainer from '@/components/DraggableContainer';
 import WorkspaceLeft from './components/WorkspaceLeft';
 import WorkspaceRight from './components/WorkspaceRight';
+import WorkspaceHeader from './components/WorkspaceHeader';
 import { IConnectionModelType } from '@/models/connection';
 import { IWorkspaceModelType } from '@/models/workspace';
 import LoadingContent from '@/components/Loading/LoadingContent';
 import { ConsoleOpenedStatus } from '@/constants';
+import Iconfont from '@/components/Iconfont';
 
 interface IProps {
   className?: string;
@@ -47,7 +49,7 @@ function handleDatabaseAndSchema(databaseAndSchema: IWorkspaceModelType['state']
       return {
         value: t.name,
         label: t.name,
-        children: schemasList,
+        next: schemasList,
       };
     });
   } else if (databaseAndSchema?.schemas) {
@@ -70,15 +72,12 @@ const workspace = memo<IProps>((props) => {
 
   useEffect(() => {
     if (pageLoading === true) {
-      setLoading(true)
+      setLoading(true);
     } else {
-      setLoading(false)
+      setLoading(false);
     }
   }, [pageLoading])
 
-  console.log('pageLoading', pageLoading)
-
-
   const cascaderOptions = useMemo(() => {
     if (!databaseAndSchema) {
       return
@@ -113,7 +112,6 @@ const workspace = memo<IProps>((props) => {
     clearData();
   }, [curConnection]);
 
-
   useEffect(() => {
     if (curWorkspaceParams.dataSourceId) {
       getConsoleList();
@@ -162,9 +160,12 @@ const workspace = memo<IProps>((props) => {
       },
     });
   }
+
   return (
+    <div className={styles.workspace}>
+      <WorkspaceHeader cascaderOptions={cascaderOptions}></WorkspaceHeader>
       <LoadingContent isLoading={loading}>
-      <DraggableContainer className={styles.box}>
+        <DraggableContainer className={styles.workspaceMain}>
           <div ref={draggableRef} className={styles.boxLeft}>
             <WorkspaceLeft cascaderOptions={cascaderOptions} />
           </div>
@@ -173,6 +174,7 @@ const workspace = memo<IProps>((props) => {
           </div>
         </DraggableContainer>
       </LoadingContent >
+    </div>
   );
 });
 

chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/sql/SQLExecutor.java

@@ -14,6 +14,7 @@ import java.util.stream.Collectors;
 import ai.chat2db.server.tools.base.constant.EasyToolsConstant;
 import ai.chat2db.spi.model.*;
 
+import ai.chat2db.spi.util.ResultSetUtils;
 import cn.hutool.core.date.TimeInterval;
 import com.google.common.collect.Lists;
 import lombok.extern.slf4j.Slf4j;
@@ -57,6 +58,7 @@ public class SQLExecutor {
 
     /**
      * 执行sql
+     *
      * @param connection
      * @param sql
      * @param function
@@ -115,7 +117,7 @@ public class SQLExecutor {
                         headerList.add(Header.builder()
                             .dataType(ai.chat2db.spi.util.JdbcUtils.resolveDataType(
                                 resultSetMetaData.getColumnTypeName(i), resultSetMetaData.getColumnType(i)).getCode())
-                            .name(resultSetMetaData.getColumnName(i))
+                            .name(ResultSetUtils.getColumnName(resultSetMetaData, i))
                             .build());
                     }
 
@@ -159,6 +161,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的数据库
+     *
      * @param connection
      * @return
      */
@@ -178,6 +181,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的schema
+     *
      * @param connection
      * @param databaseName
      * @param schemaName
@@ -217,6 +221,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的数据库表
+     *
      * @param connection
      * @param databaseName
      * @param schemaName
@@ -224,7 +229,8 @@ public class SQLExecutor {
      * @param types
      * @return
      */
-    public List<Table> tables(Connection connection,String databaseName, String schemaName, String tableName, String types[]) {
+    public List<Table> tables(Connection connection, String databaseName, String schemaName, String tableName,
+        String types[]) {
         List<Table> tables = Lists.newArrayList();
         int n = 0;
         try (ResultSet resultSet = connection.getMetaData().getTables(databaseName, schemaName, tableName,
@@ -246,6 +252,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的数据库表列
+     *
      * @param connection
      * @param databaseName
      * @param schemaName
@@ -253,7 +260,8 @@ public class SQLExecutor {
      * @param columnName
      * @return
      */
-    public List<TableColumn> columns(Connection connection,String databaseName, String schemaName, String tableName, String columnName) {
+    public List<TableColumn> columns(Connection connection, String databaseName, String schemaName, String tableName,
+        String columnName) {
         List<TableColumn> tableColumns = Lists.newArrayList();
         try (ResultSet resultSet = connection.getMetaData().getColumns(databaseName, schemaName, tableName,
             columnName)) {
@@ -270,6 +278,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的数据库表索引
+     *
      * @param connection
      * @param databaseName
      * @param schemaName
@@ -308,6 +317,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的函数
+     *
      * @param connection
      * @param databaseName
      * @param schemaName
@@ -328,6 +338,7 @@ public class SQLExecutor {
 
     /**
      * 获取所有的存储过程
+     *
      * @param connection
      * @param databaseName
      * @param schemaName

chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/util/ResultSetUtils.java

@@ -2,6 +2,7 @@
 package ai.chat2db.spi.util;
 
 import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 
 import ai.chat2db.spi.model.*;
@@ -103,4 +104,12 @@ public class ResultSetUtils {
             return null;
         }
     }
+
+    public static String getColumnName(ResultSetMetaData resultSetMetaData, int column) throws SQLException {
+        String columnLabel = resultSetMetaData.getColumnLabel(column);
+        if (columnLabel != null) {
+            return columnLabel;
+        }
+        return resultSetMetaData.getColumnName(column);
+    }
 }