diff --git a/README.md b/README.md
index 649668c8e52e56a6758d522453cf714ded845e27..8ea4a141e970b5c0f519a5fc8ec907e92032dea6 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,7 @@ npm run build
 
 - [Spring 中文文档](https://gitcode.net/dev-cloud/spring/)
 - [MySQL 中文文档](https://gitcode.net/dev-cloud/mysql/)
+- [PostgreSql 中文文档](https://gitcode.net/dev-cloud/pg/)
 
 ---
 > 感谢模版 [http://carlos-algms.github.io/](http://carlos-algms.github.io/)
\ No newline at end of file
diff --git a/public/index.html b/public/index.html
index d86ab2c6d1371ee71870e1afd88daeddd56dd4a5..af2a27442b1758b14432414528cfc967684c249d 100644
--- a/public/index.html
+++ b/public/index.html
@@ -15,8 +15,8 @@
 <meta property="og:site_name" content="开源百科">
 <meta property="og:description" content="html {       font-family: PingFang SC,helvetica neue,hiragino sans gb,arial,microsoft yahei ui,microsoft yahei,simsun,sans-serif;   }   body {     background-color: #f2f2f2;   }   .navbar-fixed {">
 <meta property="og:locale" content="zh_CN">
-<meta property="article:published_time" content="2022-04-02T10:34:44.684Z">
-<meta property="article:modified_time" content="2022-04-02T10:34:44.684Z">
+<meta property="article:published_time" content="2022-04-11T07:14:34.916Z">
+<meta property="article:modified_time" content="2022-04-11T07:14:34.916Z">
 <meta property="article:author" content="GitCode.net">
 <meta name="twitter:card" content="summary">
 
diff --git a/public/page-sitemap.xml b/public/page-sitemap.xml
index 2abf15324b481cf6eeb3a7e48c29d11b7cf259c1..4ae6484d47cc6099e4d4fa17b3c8853b072fe6ca 100644
--- a/public/page-sitemap.xml
+++ b/public/page-sitemap.xml
@@ -11,7 +11,7 @@
     
     <url>
         <loc>https://docs.gitcode.net/</loc>
-        <lastmod>2022-04-02T10:34:44.684Z</lastmod>
+        <lastmod>2022-04-11T07:14:34.916Z</lastmod>
         <changefreq>weekly</changefreq>
         <priority>0.8</priority>
     </url>
diff --git a/public/robots.txt b/public/robots.txt
index 41f856bf79541887cc5d74fe5a06a292425b71e3..e5ec076b16570f65ea2421b388a0253f4beb4ed9 100644
--- a/public/robots.txt
+++ b/public/robots.txt
@@ -3,4 +3,5 @@ Allow:/
 
 Sitemap: https://docs.gitcode.net/sitemap.xml
 Sitemap: https://docs.gitcode.net/spring/guide/sitemap.xml
-Sitemap: https://docs.gitcode.net/mysql/guide/sitemap.xml
\ No newline at end of file
+Sitemap: https://docs.gitcode.net/mysql/guide/sitemap.xml
+Sitemap: https://docs.gitcode.net/pg/guide/sitemap.xml
\ No newline at end of file
diff --git a/public/sitemap.xml b/public/sitemap.xml
index f18520aa81f13601c88d83a1c2f053cae26e173f..f59e61a1966297878b2b413607a4046dda69aafa 100644
--- a/public/sitemap.xml
+++ b/public/sitemap.xml
@@ -2,14 +2,18 @@
 <sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <sitemap>
     <loc>https://docs.gitcode.net/page-sitemap.xml</loc>
-    <lastmod>2022-04-02T10:34:44.684Z</lastmod>
+    <lastmod>2022-04-11T07:14:34.916Z</lastmod>
   </sitemap>
   <sitemap>
     <loc>https://docs.gitcode.net/spring/guide/sitemap.xml</loc>
-    <lastmod>"2022-04-02T10:35:15.590Z"</lastmod>
+    <lastmod>"2022-04-11T07:17:07.388Z"</lastmod>
   </sitemap>
   <sitemap>
     <loc>https://docs.gitcode.net/mysql/guide/sitemap.xml</loc>
-    <lastmod>"2022-04-02T10:35:15.591Z"</lastmod>
+    <lastmod>"2022-04-11T07:17:07.388Z"</lastmod>
+  </sitemap>
+  <sitemap>
+    <loc>https://docs.gitcode.net/pg/guide/sitemap.xml</loc>
+    <lastmod>"2022-04-11T07:17:07.388Z"</lastmod>
   </sitemap>
 </sitemapindex>
\ No newline at end of file
diff --git a/sitemap-merge.js b/sitemap-merge.js
index 90670f33b2be2a5f31d12c1ec721cc138d878044..7ff80da075d3c120cd8cd7ea6d4e44d2e93a12a2 100644
--- a/sitemap-merge.js
+++ b/sitemap-merge.js
@@ -9,7 +9,8 @@ const robot_path = "./public/robots.txt"
 
 const allowed_sitemaps = [
     'https://docs.gitcode.net/spring/guide/sitemap.xml',
-    'https://docs.gitcode.net/mysql/guide/sitemap.xml'
+    'https://docs.gitcode.net/mysql/guide/sitemap.xml',
+    'https://docs.gitcode.net/pg/guide/sitemap.xml'
 ]