diff --git a/samples/Sample.Kafka.PostgreSql/Controllers/ValuesController.cs b/samples/Sample.Kafka.PostgreSql/Controllers/ValuesController.cs
index 3ba48cc..7b8f33c 100644
--- a/samples/Sample.Kafka.PostgreSql/Controllers/ValuesController.cs
+++ b/samples/Sample.Kafka.PostgreSql/Controllers/ValuesController.cs
@@ -21,7 +21,7 @@ namespace Sample.Kafka.PostgreSql.Controllers
         [Route("~/without/transaction")]
         public async Task<IActionResult> WithoutTransaction()
         {
-            await _capBus.PublishAsync("sample.rabbitmq.mysql", DateTime.Now);
+            await _capBus.PublishAsync("sample.kafka.postgrsql", DateTime.Now);
 
             return Ok();
         }
@@ -36,10 +36,7 @@ namespace Sample.Kafka.PostgreSql.Controllers
                     //your business code
                     connection.Execute("insert into test(name) values('test')", transaction: (IDbTransaction)transaction.DbTransaction);
 
-                    for (int i = 0; i < 5; i++)
-                    {
-                        _capBus.Publish("sample.rabbitmq.mysql", DateTime.Now);
-                    }
+                    _capBus.Publish("sample.kafka.postgrsql", DateTime.Now);
 
                     transaction.Commit();
                 }
@@ -49,8 +46,8 @@ namespace Sample.Kafka.PostgreSql.Controllers
         }
 
 
-        [CapSubscribe("#.test2")]
-        public void Test2(int value)
+        [CapSubscribe("sample.kafka.postgrsql")]
+        public void Test2(DateTime value)
         {
             Console.WriteLine("Subscriber output message: " + value);
         }
diff --git a/samples/Sample.Kafka.PostgreSql/Startup.cs b/samples/Sample.Kafka.PostgreSql/Startup.cs
index 5bda514..c47ce69 100644
--- a/samples/Sample.Kafka.PostgreSql/Startup.cs
+++ b/samples/Sample.Kafka.PostgreSql/Startup.cs
@@ -1,8 +1,7 @@
-using System;
-using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
 
-namespace Sample.Kafka.MySql
+namespace Sample.Kafka.PostgreSql
 {
     public class Startup
     {
@@ -10,8 +9,8 @@ namespace Sample.Kafka.MySql
         {
             services.AddCap(x =>
             {
-                x.UsePostgreSql("Server=localhost;Database=testcap;UserId=root;Password=123123;");
-                x.UseKafka("localhost:9092");
+                x.UsePostgreSql("");
+                x.UseKafka("");
                 x.UseDashboard();
             });
 
diff --git a/src/DotNetCore.CAP.PostgreSql/IDataStorage.PostgreSql.cs b/src/DotNetCore.CAP.PostgreSql/IDataStorage.PostgreSql.cs
index d4204e3..cd3710b 100644
--- a/src/DotNetCore.CAP.PostgreSql/IDataStorage.PostgreSql.cs
+++ b/src/DotNetCore.CAP.PostgreSql/IDataStorage.PostgreSql.cs
@@ -45,7 +45,7 @@ namespace DotNetCore.CAP.PostgreSql
             await using var connection = new NpgsqlConnection(_options.Value.ConnectionString);
             await connection.ExecuteAsync(sql, new
             {
-                Id = message.DbId,
+                Id = long.Parse(message.DbId),
                 message.Retries,
                 message.ExpiresAt,
                 StatusName = state.ToString("G")
@@ -59,7 +59,7 @@ namespace DotNetCore.CAP.PostgreSql
             await using var connection = new NpgsqlConnection(_options.Value.ConnectionString);
             await connection.ExecuteAsync(sql, new
             {
-                Id = message.DbId,
+                Id = long.Parse(message.DbId),
                 message.Retries,
                 message.ExpiresAt,
                 StatusName = state.ToString("G")
@@ -85,13 +85,13 @@ namespace DotNetCore.CAP.PostgreSql
 
             var po = new
             {
-                Id = message.DbId,
+                Id = long.Parse(message.DbId),
                 Name = name,
                 message.Content,
                 message.Retries,
                 message.Added,
                 message.ExpiresAt,
-                StatusName = StatusName.Scheduled
+                StatusName = nameof(StatusName.Scheduled)
             };
 
             if (dbTransaction == null)
@@ -121,7 +121,7 @@ namespace DotNetCore.CAP.PostgreSql
             await using var connection = new NpgsqlConnection(_options.Value.ConnectionString);
             await connection.ExecuteAsync(sql, new
             {
-                Id = SnowflakeId.Default().NextId().ToString(),
+                Id = SnowflakeId.Default().NextId(),
                 Group = group,
                 Name = name,
                 Content = content,
@@ -150,7 +150,7 @@ namespace DotNetCore.CAP.PostgreSql
             await using var connection = new NpgsqlConnection(_options.Value.ConnectionString);
             await connection.ExecuteAsync(sql, new
             {
-                Id = mdMessage.DbId,
+                Id = long.Parse(mdMessage.DbId),
                 Group = group,
                 Name = name,
                 Content = content,
@@ -168,7 +168,7 @@ namespace DotNetCore.CAP.PostgreSql
             await using var connection = new NpgsqlConnection(_options.Value.ConnectionString);
 
             return await connection.ExecuteAsync(
-                $"DELETE FROM {table} WHERE \"ExpiresAt\" < @now AND \"Id\" IN (SELECT \"Id\" FROM {table} LIMIT @count);",
+                $"DELETE FROM {table} WHERE \"ExpiresAt\" < @timeout AND \"Id\" IN (SELECT \"Id\" FROM {table} LIMIT @batchCount);",
                 new { timeout, batchCount });
         }
 
diff --git a/src/DotNetCore.CAP.PostgreSql/IStorageInitializer.PostgreSql.cs b/src/DotNetCore.CAP.PostgreSql/IStorageInitializer.PostgreSql.cs
index ad494c9..f8e8ba0 100644
--- a/src/DotNetCore.CAP.PostgreSql/IStorageInitializer.PostgreSql.cs
+++ b/src/DotNetCore.CAP.PostgreSql/IStorageInitializer.PostgreSql.cs
@@ -53,7 +53,7 @@ namespace DotNetCore.CAP.PostgreSql
             var batchSql = $@"
 CREATE SCHEMA IF NOT EXISTS ""{schema}"";
 
-CREATE TABLE IF NOT EXISTS {GetPublishedTableName()}(
+CREATE TABLE IF NOT EXISTS {GetReceivedTableName()}(
 	""Id"" BIGINT PRIMARY KEY NOT NULL,
     ""Version"" VARCHAR(20) NOT NULL,
 	""Name"" VARCHAR(200) NOT NULL,
@@ -65,7 +65,7 @@ CREATE TABLE IF NOT EXISTS {GetPublishedTableName()}(
 	""StatusName"" VARCHAR(50) NOT NULL
 );
 
-CREATE TABLE IF NOT EXISTS {GetReceivedTableName()}(
+CREATE TABLE IF NOT EXISTS {GetPublishedTableName()}(
 	""Id"" BIGINT PRIMARY KEY NOT NULL,
     ""Version"" VARCHAR(20) NOT NULL,
 	""Name"" VARCHAR(200) NOT NULL,