diff --git a/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/consts/SQLConst.java b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/consts/SQLConst.java
index 54fe3044..9d73d2cb 100644
--- a/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/consts/SQLConst.java
+++ b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/consts/SQLConst.java
@@ -16,25 +16,20 @@ public class SQLConst {
             + "array_to_string"
             + "(\n"
             + "        array(\n"
-            + "        select ' ' || concat_ws(' ',fieldName, fieldType, fieldLen, indexType, isNullStr, fieldComment"
+            + "        select ' ' || concat_ws(' ',fieldName, fieldType, defaultValue, isNullStr"
             + " ) as "
             + "column_line\n"
             + "        from (\n"
-            + "        select a.attname as fieldName,format_type(a.atttypid,a.atttypmod) as fieldType,(case when "
-            + "atttypmod-4>0 then\n"
-            + "        atttypmod-4 else 0 end) as fieldLen,\n"
-            + "        (case when (select count(*) from pg_constraint where conrelid = a.attrelid and conkey[1]=attnum "
-            + "and\n"
-            + "        contype='p')>0 then 'PRI'\n"
-            + "        when (select count(*) from pg_constraint where conrelid = a.attrelid and conkey[1]=attnum and "
-            + "contype='u')>0\n"
-            + "        then 'UNI'\n"
-            + "        when (select count(*) from pg_constraint where conrelid = a.attrelid and conkey[1]=attnum and "
-            + "contype='f')>0\n"
-            + "        then 'FRI'\n"
-            + "        else '' end) as indexType,\n"
-            + "        (case when a.attnotnull=true then 'not null' else 'null' end) as isNullStr,\n"
-            + "        ' comment ' || col_description(a.attrelid,a.attnum) as fieldComment\n"
+            + "        select a.attname as fieldName,format_type(a.atttypid,a.atttypmod) as fieldType,"
+            + "        CASE WHEN \n"
+            + "                (SELECT substring(pg_catalog.pg_get_expr(B.adbin, B.adrelid) for 128)\n"
+            + "                 FROM pg_catalog.pg_attrdef B WHERE B.adrelid = A.attrelid AND B.adnum = A.attnum AND A.atthasdef) IS NOT NULL THEN\n"
+            + "                'DEFAULT '|| (SELECT substring(pg_catalog.pg_get_expr(B.adbin, B.adrelid) for 128)\n"
+            + "                              FROM pg_catalog.pg_attrdef B WHERE B.adrelid = A.attrelid AND B.adnum = A.attnum AND A.atthasdef)\n"
+            + "            ELSE\n"
+            + "                ''\n"
+            + "            END as defaultValue,"
+            + "        (case when a.attnotnull=true then 'not null' else 'null' end) as isNullStr\n"
             + "        from pg_attribute a where attstattarget=-1 and attrelid = (select c.oid from pg_class c,"
             + "pg_namespace n"
             + " where\n"
@@ -114,13 +109,13 @@ public class SQLConst {
             + "        -- COMMENT COMMENT ON COLUMN sys_activity.id IS '主键';\n"
             + "        tableScript:= tableScript || chr(13)||chr(10) || chr(13)||chr(10) || array_to_string(\n"
             + "        array(\n"
-            + "        SELECT 'COMMENT ON COLUMN' || tablename || '.' || a.attname ||' IS '|| ''''|| d.description "
+            + "        SELECT 'COMMENT ON COLUMN ' || 'namespace.tablename' || '.' || a.attname ||' IS '|| ''''|| d.description "
             + "||''''\n"
             + "        FROM pg_class c\n"
             + "        JOIN pg_description d ON c.oid=d.objoid\n"
             + "        JOIN pg_attribute a ON c.oid = a.attrelid\n"
             + "        WHERE c.relname=tablename\n"
-            + "        AND a.attnum = d.objsubid),','|| chr(13)||chr(10)) ;\n"
+            + "        AND a.attnum = d.objsubid),';'|| chr(13)||chr(10)) ;\n"
             + "\n"
             + "        return tableScript;\n"
             + "\n"
diff --git a/chat2db-server/chat2db-server-start/src/main/java/ai/chat2db/server/start/controller/oauth/OauthController.java b/chat2db-server/chat2db-server-start/src/main/java/ai/chat2db/server/start/controller/oauth/OauthController.java
index 3d484cfe..64a6219e 100644
--- a/chat2db-server/chat2db-server-start/src/main/java/ai/chat2db/server/start/controller/oauth/OauthController.java
+++ b/chat2db-server/chat2db-server-start/src/main/java/ai/chat2db/server/start/controller/oauth/OauthController.java
@@ -18,6 +18,7 @@ import cn.dev33.satoken.stp.StpUtil;
 import cn.dev33.satoken.util.SaTokenConsts;
 import cn.hutool.crypto.digest.DigestUtil;
 import lombok.extern.slf4j.Slf4j;
+import org.jetbrains.annotations.NotNull;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -25,6 +26,8 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
+import java.util.Objects;
+
 /**
  * 登录授权服务
  *
@@ -48,7 +51,27 @@ public class OauthController {
     public DataResult login(@Validated @RequestBody LoginRequest request) {
         //   查询用户
         User user = userService.query(request.getUserName()).getData();
-        if (user == null) {
+        this.validateUser(user);
+
+        // Successfully logged in without modifying the administrator password
+        if (this.validateAdmin(user)) {
+            return DataResult.of(doLogin(user));
+        }
+
+        if (!DigestUtil.bcryptCheck(request.getPassword(), user.getPassword())) {
+            throw new BusinessException("oauth.passwordIncorrect");
+        }
+
+        return DataResult.of(doLogin(user));
+    }
+
+    private boolean validateAdmin(final @NotNull User user) {
+        return RoleCodeEnum.ADMIN.getDefaultUserId().equals(user.getId()) && RoleCodeEnum.ADMIN.getPassword().equals(
+                user.getPassword());
+    }
+
+    private void validateUser(final User user) {
+        if (Objects.isNull(user)) {
             throw new BusinessException("oauth.userNameNotExits");
         }
         if (!ValidStatusEnum.VALID.getCode().equals(user.getStatus())) {
@@ -57,16 +80,6 @@ public class OauthController {
         if (RoleCodeEnum.DESKTOP.getDefaultUserId().equals(user.getId())) {
             throw new BusinessException("oauth.IllegalUserName");
         }
-        // Successfully logged in without modifying the administrator password
-        if (RoleCodeEnum.ADMIN.getDefaultUserId().equals(user.getId()) && RoleCodeEnum.ADMIN.getPassword().equals(
-            user.getPassword())) {
-            return DataResult.of(doLogin(user));
-        }
-
-        if (!DigestUtil.bcryptCheck(request.getPassword(), user.getPassword())) {
-            throw new BusinessException("oauth.passwordIncorrect");
-        }
-        return DataResult.of(doLogin(user));
     }
 
     private Object doLogin(User user) {
@@ -106,11 +119,7 @@ public class OauthController {
     }
 
     private LoginUser getLoginUser() {
-        LoginUser loginUser = ContextUtils.queryLoginUser();
-        if (loginUser == null) {
-            return null;
-        }
-        return loginUser;
+        return ContextUtils.queryLoginUser();
     }
 
 }