diff --git a/README.md b/README.md
index 92898250..7648b490 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ Use when you want shutdown the web app
 kill -9 $(lsof -t -i :7001)
 ```
 
-## Documentation 3.9.0
+## Documentation 3.9.2
 [中文](https://docs.nebula-graph.com.cn/3.6.0/nebula-studio/about-studio/st-ug-what-is-graph-studio/)
 [ENGLISH](https://docs.nebula-graph.io/3.6.0/nebula-studio/about-studio/st-ug-what-is-graph-studio/)
 
diff --git a/app/components/CSVPreviewLink/index.tsx b/app/components/CSVPreviewLink/index.tsx
index ff51c030..8b73347b 100644
--- a/app/components/CSVPreviewLink/index.tsx
+++ b/app/components/CSVPreviewLink/index.tsx
@@ -31,7 +31,8 @@ const CSVPreviewLink = (props: IProps) => {
     let data = [];
     readString(sample, {
       delimiter,
-      worker: true,
+      // @ts-ignore
+      worker: false,
       skipEmptyLines: true,
       step: (row) => {
         data = [...data, row.data];
diff --git a/app/components/FileConfigSetting/index.tsx b/app/components/FileConfigSetting/index.tsx
index f9fe9096..94495b11 100644
--- a/app/components/FileConfigSetting/index.tsx
+++ b/app/components/FileConfigSetting/index.tsx
@@ -75,7 +75,8 @@ const FileConfigSetting = (props: IProps) => {
       if (activeItem.sample !== undefined) {
         readString(activeItem.sample, {
           delimiter: activeItem.delimiter || ',',
-          worker: true,
+          // @ts-ignore
+          worker: false,
           skipEmptyLines: true,
           step: (row) => {
             content = [...content, row.data];
diff --git a/app/pages/Import/DatasourceList/LocalFileList/PreviewFileModal/index.tsx b/app/pages/Import/DatasourceList/LocalFileList/PreviewFileModal/index.tsx
index 504deba2..a16bf09a 100644
--- a/app/pages/Import/DatasourceList/LocalFileList/PreviewFileModal/index.tsx
+++ b/app/pages/Import/DatasourceList/LocalFileList/PreviewFileModal/index.tsx
@@ -53,7 +53,8 @@ const PreviewFileModal = (props: IProps) => {
       let data = [];
       readString(sample, {
         delimiter: delimiter || file.delimiter,
-        worker: true,
+        // @ts-ignore
+        worker: false,
         skipEmptyLines: true,
         step: (row) => {
           data = [...data, row.data];
diff --git a/app/pages/LLMBot/chat.tsx b/app/pages/LLMBot/chat.tsx
index ec900caf..2cfb4d2a 100644
--- a/app/pages/LLMBot/chat.tsx
+++ b/app/pages/LLMBot/chat.tsx
@@ -24,7 +24,7 @@ function Chat() {
     const newMessages = [
       ...beforeMessages,
       { role: 'user', content: currentInput },
-      { role: 'assistant', content: '', status: 'pending' }, // asistant can't be changed
+      { role: 'assistant', content: '', status: 'pending' }, // assistant can't be changed
     ];
     llm.update({
       currentInput: '',
diff --git a/app/pages/LLMBot/index.tsx b/app/pages/LLMBot/index.tsx
index 8ff9665c..c1ded399 100644
--- a/app/pages/LLMBot/index.tsx
+++ b/app/pages/LLMBot/index.tsx
@@ -26,7 +26,7 @@ function LLMBot() {
         content={<Chat />}
         title={
           <div className={styles.llmBotTitle}>
-            <div className={styles.llmBotTitleInner}>AI Asistant</div>
+            <div className={styles.llmBotTitleInner}>AI Assistant</div>
             <div className={styles.llmBotHandler}>
               text2match
               <Switch
diff --git a/app/stores/llm.ts b/app/stores/llm.ts
index 9b5e48d4..eba3945d 100644
--- a/app/stores/llm.ts
+++ b/app/stores/llm.ts
@@ -6,7 +6,7 @@ import * as ngqlDoc from '@app/utils/ngql';
 import schema from './schema';
 import rootStore from '.';
 
-export const matchPrompt = `I want you to be a NebulaGraph database asistant.
+export const matchPrompt = `I want you to be a NebulaGraph database assistant.
 There are below document.
 ----
 Use only the provided relationship types and properties in the schema.
@@ -49,7 +49,7 @@ the reference documentation provided is: \n
 ----
 Please marked(\`\`\`ngql) for markdown code block to write the ngql and answer the user's question with the question language`;
 
-export const AgentTask = `Assume you are a NebulaGraph AI chat asistant. You need to help the user to write NGQL or solve other question. 
+export const AgentTask = `Assume you are a NebulaGraph AI chat assistant. You need to help the user to write NGQL or solve other question. 
 You have access to the following information:
 1. The user's console NGQL context is: {current_ngql}
 2. The user's current graph space is: {space_name}
diff --git a/app/utils/gql.ts b/app/utils/gql.ts
index ae2eb59a..1a9dfc66 100644
--- a/app/utils/gql.ts
+++ b/app/utils/gql.ts
@@ -114,9 +114,11 @@ export const getTagOrEdgeCreateGQL = (params: {
           }
           const _type =
             item.type !== 'fixed_string' ? item.type : item.type + `(${item.fixedLength ? item.fixedLength : ''})`;
-          const _null = item.allowNull ? 'NULL' : 'NOT NULL';
+          // `[NULL | NOT NULL]` is not required
+          // in `CREATE TAG` or `CREATE EDGE` statement, the default value is `NULL` if not specified
+          const _null = item.allowNull === undefined ? '' : item.allowNull ? 'NULL' : 'NOT NULL';
           const _comment = item.comment ? `COMMENT "${handleEscape(item.comment)}"` : '';
-          const conbine = [handleKeyword(item.name), _type, _null, valueStr, _comment];
+          const conbine = [handleKeyword(item.name), _type, _null, valueStr, _comment].filter(Boolean);
           return conbine.join(' ');
         })
         .join(', ')
diff --git a/app/utils/import.ts b/app/utils/import.ts
index 045b6ca3..f6ddcd47 100644
--- a/app/utils/import.ts
+++ b/app/utils/import.ts
@@ -25,16 +25,10 @@ export function configToJson(payload: IConfig) {
     concurrency,
     retry,
     readerConcurrency,
-    importerConcurrency
+    importerConcurrency,
   } = payload;
-  const vertexToJSON = tagDataToJSON(
-    tagConfig,
-    spaceVidType,
-  );
-  const edgeToJSON = edgeDataToJSON(
-    edgeConfig,
-    spaceVidType,
-  );
+  const vertexToJSON = tagDataToJSON(tagConfig, spaceVidType);
+  const edgeToJSON = edgeDataToJSON(edgeConfig, spaceVidType);
   const sources: any[] = [...vertexToJSON, ...edgeToJSON];
   const configJson = {
     client: {
@@ -51,24 +45,24 @@ export function configToJson(payload: IConfig) {
       readerConcurrency: Number(readerConcurrency ?? DEFAULT_IMPORT_CONFIG.readerConcurrency),
       importerConcurrency: Number(importerConcurrency ?? DEFAULT_IMPORT_CONFIG.importerConcurrency),
     },
-    sources
+    sources,
   };
   return JSON.stringify(configJson);
 }
 
 const getIdConfig = (payload: {
-  indexes: number[], 
-  prefix?: string, 
-  suffix?: string,
-  vidFunction?: string,
-  type: string
+  indexes: number[];
+  prefix?: string;
+  suffix?: string;
+  vidFunction?: string;
+  type: string;
 }) => {
   const { indexes, prefix, suffix, vidFunction, type } = payload;
   const id = {
     type,
     function: vidFunction,
   } as any;
-  if(indexes.length > 1 || !!prefix || !!suffix) {
+  if (indexes.length > 1 || !!prefix || !!suffix) {
     id.concatItems = [...indexes];
     prefix && id.concatItems.unshift(prefix);
     suffix && id.concatItems.push(suffix);
@@ -77,14 +71,22 @@ const getIdConfig = (payload: {
   }
   return id;
 };
-export function edgeDataToJSON(
-  configs: IEdgeItem[],
-  spaceVidType: string,
-) {
+export function edgeDataToJSON(configs: IEdgeItem[], spaceVidType: string) {
   const result = configs.reduce((acc: any, cur) => {
     const { name, files } = cur;
-    const _config = files.map(item => {
-      const { file, props, srcIdIndex, srcIdFunction, dstIdIndex, dstIdFunction, srcIdPrefix, srcIdSuffix, dstIdPrefix, dstIdSuffix } = item;
+    const _config = files.map((item) => {
+      const {
+        file,
+        props,
+        srcIdIndex,
+        srcIdFunction,
+        dstIdIndex,
+        dstIdFunction,
+        srcIdPrefix,
+        srcIdSuffix,
+        dstIdPrefix,
+        dstIdSuffix,
+      } = item;
       const vidType = spaceVidType === 'INT64' ? 'int' : 'string';
       // rank is the last prop
       const rank = props[props.length - 1];
@@ -99,37 +101,39 @@ export function edgeDataToJSON(
         });
         return acc;
       }, []);
-      const edges = [{
-        name: handleEscape(name),
-        src: {
-          id: getIdConfig({
-            indexes: srcIdIndex,
-            prefix: srcIdPrefix,
-            suffix: srcIdSuffix,
-            vidFunction: srcIdFunction,
-            type: vidType,
-          })
-        },
-        dst: {
-          id: getIdConfig({
-            indexes: dstIdIndex,
-            prefix: dstIdPrefix,
-            suffix: dstIdSuffix,
-            vidFunction: dstIdFunction,
-            type: vidType,
-          })
+      const edges = [
+        {
+          name: handleEscape(name),
+          src: {
+            id: getIdConfig({
+              indexes: srcIdIndex,
+              prefix: srcIdPrefix,
+              suffix: srcIdSuffix,
+              vidFunction: srcIdFunction,
+              type: vidType,
+            }),
+          },
+          dst: {
+            id: getIdConfig({
+              indexes: dstIdIndex,
+              prefix: dstIdPrefix,
+              suffix: dstIdSuffix,
+              vidFunction: dstIdFunction,
+              type: vidType,
+            }),
+          },
+          rank: typeof rank.mapping == 'number' ? { index: rank.mapping } : null,
+          props: edgeProps,
         },
-        rank: typeof rank.mapping == 'number' ? { index: rank.mapping } : null,
-        props: edgeProps,
-      }];
+      ];
       const edgeConfig = {
         csv: {
           withHeader: file.withHeader || false,
-          delimiter: file.delimiter
+          delimiter: file.delimiter,
         },
         edges,
       } as any;
-      if(file.datasourceId) {
+      if (file.datasourceId) {
         edgeConfig.datasourceId = file.datasourceId;
         edgeConfig.datasourceFilePath = file.path;
       } else {
@@ -143,13 +147,10 @@ export function edgeDataToJSON(
   return result;
 }
 
-export function tagDataToJSON(
-  configs: ITagItem[],
-  spaceVidType: string,
-) {
+export function tagDataToJSON(configs: ITagItem[], spaceVidType: string) {
   const result = configs.reduce((acc: any, cur) => {
     const { name, files } = cur;
-    const _config = files.map(item => {
+    const _config = files.map((item) => {
       const { file, props, vidIndex, vidFunction, vidPrefix, vidSuffix } = item;
       const _props = props.reduce((acc: any, cur) => {
         if (isEmpty(cur.mapping) && (cur.allowNull || cur.isDefault)) {
@@ -162,25 +163,27 @@ export function tagDataToJSON(
         });
         return acc;
       }, []);
-      const tags = [{
-        name: handleEscape(name),
-        id: getIdConfig({
-          indexes: vidIndex,
-          prefix: vidPrefix,
-          suffix: vidSuffix,
-          vidFunction,
-          type: spaceVidType === 'INT64' ? 'int' : 'string',
-        }),
-        props: _props.filter(prop => prop),
-      }];
+      const tags = [
+        {
+          name: handleEscape(name),
+          id: getIdConfig({
+            indexes: vidIndex,
+            prefix: vidPrefix,
+            suffix: vidSuffix,
+            vidFunction,
+            type: spaceVidType === 'INT64' ? 'int' : 'string',
+          }),
+          props: _props.filter((prop) => prop),
+        },
+      ];
       const result = {
         csv: {
           withHeader: file.withHeader || false,
-          delimiter: file.delimiter
+          delimiter: file.delimiter,
         },
-        tags
+        tags,
       } as any;
-      if(file.datasourceId) {
+      if (file.datasourceId) {
         result.datasourceId = file.datasourceId;
         result.datasourceFilePath = file.path;
       } else {
@@ -195,116 +198,118 @@ export function tagDataToJSON(
 }
 
 export const exampleJson = {
-  'client': {
-    'version': 'v3',
-    'user': '',
-    'password': '',
-    'address': ''
+  client: {
+    version: 'v3',
+    user: '',
+    password: '',
+    address: '',
   },
-  'manager': {
-    'spaceName': 'sales',
+  manager: {
+    spaceName: 'sales',
   },
-  'sources': [
+  sources: [
     {
-      'path': 'item.csv',
-      'csv': {
-        'withHeader': false,
-        'delimiter': null
+      path: 'item.csv',
+      csv: {
+        withHeader: false,
+        delimiter: null,
       },
-      'tags': [
+      tags: [
         {
-          'name': 'item',
-          'vid': {
-            'index': 0,
-            'function': null,
-            'type': 'string',
+          name: 'item',
+          id: {
+            index: 0,
+            function: null,
+            type: 'string',
           },
-          'props': [
+          props: [
             {
-              'name': 'id_single_item',
-              'type': 'string',
-              'index': 0
+              name: 'id_single_item',
+              type: 'string',
+              index: 0,
             },
             {
-              'name': 'region',
-              'type': 'string',
-              'index': 1
+              name: 'region',
+              type: 'string',
+              index: 1,
             },
             {
-              'name': 'country',
-              'type': 'string',
-              'index': 2
+              name: 'country',
+              type: 'string',
+              index: 2,
             },
             {
-              'name': 'item_type',
-              'type': 'string',
-              'index': 3
+              name: 'item_type',
+              type: 'string',
+              index: 3,
             },
             {
-              'name': 'sales_channel',
-              'type': 'string',
-              'index': 4
-            }
-          ]
-        }
-      ]
+              name: 'sales_channel',
+              type: 'string',
+              index: 4,
+            },
+          ],
+        },
+      ],
     },
     {
-      'path': 'orderr.csv',
-      'csv': {
-        'withHeader': false,
-        'delimiter': null
+      path: 'orderr.csv',
+      csv: {
+        withHeader: false,
+        delimiter: null,
       },
-      'edges': [{
-        'name': 'order',
-        'props': [
-          {
-            'name': 'order_id',
-            'type': 'string',
-            'index': 0
-          },
-          {
-            'name': 'id_item',
-            'type': 'string',
-            'index': 0
-          },
-          {
-            'name': 'unit_sold',
-            'type': 'string',
-            'index': 2
-          },
-          {
-            'name': 'unit_price',
-            'type': 'string',
-            'index': 3
+      edges: [
+        {
+          name: 'order',
+          props: [
+            {
+              name: 'order_id',
+              type: 'string',
+              index: 0,
+            },
+            {
+              name: 'id_item',
+              type: 'string',
+              index: 0,
+            },
+            {
+              name: 'unit_sold',
+              type: 'string',
+              index: 2,
+            },
+            {
+              name: 'unit_price',
+              type: 'string',
+              index: 3,
+            },
+            {
+              name: 'unit_cost',
+              type: 'string',
+              index: 4,
+            },
+            {
+              name: 'total_profit',
+              type: 'string',
+              index: 5,
+            },
+          ],
+          src: {
+            id: {
+              index: 1,
+              function: null,
+              type: 'string',
+            },
           },
-          {
-            'name': 'unit_cost',
-            'type': 'string',
-            'index': 4
+          dst: {
+            id: {
+              index: 1,
+              function: null,
+              type: 'string',
+            },
           },
-          {
-            'name': 'total_profit',
-            'type': 'string',
-            'index': 5
-          }
-        ],
-        'src': {
-          'id': {
-            'index': 1,
-            'function': null,
-            'type': 'string',
-          }
-        },
-        'dst': {
-          'id': {
-            'index': 1,
-            'function': null,
-            'type': 'string',
-          }
+          rank: null,
         },
-        'rank': null
-      }],
-    }
-  ]
-};
\ No newline at end of file
+      ],
+    },
+  ],
+};
diff --git a/deployment/docker/docker-compose.yml b/deployment/docker/docker-compose.yml
index 5f64bee9..760a2c83 100644
--- a/deployment/docker/docker-compose.yml
+++ b/deployment/docker/docker-compose.yml
@@ -1,7 +1,7 @@
 version: '3.4'
 services:
   web:
-    image: vesoft/nebula-graph-studio:v3.9.0
+    image: vesoft/nebula-graph-studio:v3.9.2
     environment:
       USER: root
     ports:
diff --git a/package-lock.json b/package-lock.json
index 25b43e12..ba7ea5ff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "nebula-graph-studio",
-  "version": "3.9.0",
+  "version": "3.9.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "nebula-graph-studio",
-      "version": "3.9.0",
+      "version": "3.9.2",
       "hasInstallScript": true,
       "license": "Apache 2.0",
       "dependencies": {
diff --git a/package.json b/package.json
index dd9360b1..a4f09ccc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nebula-graph-studio",
-  "version": "3.9.0",
+  "version": "3.9.2",
   "description": "nebula-graph-studio",
   "private": true,
   "repository": {