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..0cff0d0e 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 +16,12 @@ public class SQLConst {
             + "array_to_string"
             + "(\n"
             + "        array(\n"
-            + "        select ' ' || concat_ws(' ',fieldName, fieldType, fieldLen, indexType, isNullStr, fieldComment"
+            + "        select ' ' || concat_ws(' ',fieldName, fieldType, 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 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"
@@ -114,7 +101,7 @@ 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 ' || tablename || '.' || a.attname ||' IS '|| ''''|| d.description "
             + "||''''\n"
             + "        FROM pg_class c\n"
             + "        JOIN pg_description d ON c.oid=d.objoid\n"