diff --git a/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs b/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
index 128cad9..75d56b5 100644
--- a/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
+++ b/src/DotNetCore.CAP.PostgreSql/CAP.PostgreSqlCapOptionsExtension.cs
@@ -34,7 +34,7 @@ namespace DotNetCore.CAP
                     using (var scope = x.CreateScope())
                     {
                         var provider = scope.ServiceProvider;
-                        var dbContext = (DbContext) provider.GetService(postgreSqlOptions.DbContextType);
+                        var dbContext = (DbContext)provider.GetService(postgreSqlOptions.DbContextType);
                         postgreSqlOptions.ConnectionString = dbContext.Database.GetDbConnection().ConnectionString;
                         return postgreSqlOptions;
                     }
diff --git a/src/DotNetCore.CAP.PostgreSql/PostgreSqlMonitoringApi.cs b/src/DotNetCore.CAP.PostgreSql/PostgreSqlMonitoringApi.cs
index 3306bf3..0f9f469 100644
--- a/src/DotNetCore.CAP.PostgreSql/PostgreSqlMonitoringApi.cs
+++ b/src/DotNetCore.CAP.PostgreSql/PostgreSqlMonitoringApi.cs
@@ -24,12 +24,12 @@ namespace DotNetCore.CAP.PostgreSql
         public StatisticsDto GetStatistics()
         {
             var sql = string.Format(@"
-select count(Id) from ""{0}"".""published"" where ""StatusName"" = N'Succeeded';
-select count(Id) from ""{0}"".""received""  where ""StatusName"" = N'Succeeded';
-select count(Id) from ""{0}"".""published"" where ""StatusName"" = N'Failed';
-select count(Id) from ""{0}"".""received""  where ""StatusName"" = N'Failed';
-select count(Id) from ""{0}"".""published"" where ""StatusName"" in (N'Processing',N'Scheduled',N'Enqueued');
-select count(Id) from ""{0}"".""received""  where ""StatusName"" in (N'Processing',N'Scheduled',N'Enqueued');",
+select count(""Id"") from ""{0}"".""published"" where ""StatusName"" = N'Succeeded';
+select count(""Id"") from ""{0}"".""received""  where ""StatusName"" = N'Succeeded';
+select count(""Id"") from ""{0}"".""published"" where ""StatusName"" = N'Failed';
+select count(""Id"") from ""{0}"".""received""  where ""StatusName"" = N'Failed';
+select count(""Id"") from ""{0}"".""published"" where ""StatusName"" in (N'Processing',N'Scheduled',N'Enqueued');
+select count(""Id"") from ""{0}"".""received""  where ""StatusName"" in (N'Processing',N'Scheduled',N'Enqueued');",
                 _options.Schema);
 
             var statistics = UseConnection(connection =>
@@ -130,10 +130,10 @@ select count(Id) from ""{0}"".""received""  where ""StatusName"" in (N'Processin
         private int GetNumberOfMessage(IDbConnection connection, string tableName, string statusName)
         {
             var sqlQuery = statusName == StatusName.Processing
-                ? $"select count(Id) from \"{_options.Schema}\".\"{tableName}\" where \"StatusName\" in (N'Processing',N'Scheduled',N'Enqueued')"
-                : $"select count(Id) from \"{_options.Schema}\".\"{tableName}\" where \"StatusName\" = @state";
+                ? $"select count(\"Id\") from \"{_options.Schema}\".\"{tableName}\" where \"StatusName\" in (N'Processing',N'Scheduled',N'Enqueued')"
+                : $"select count(\"Id\") from \"{_options.Schema}\".\"{tableName}\" where \"StatusName\" = @state";
 
-            var count = connection.ExecuteScalar<int>(sqlQuery, new {state = statusName});
+            var count = connection.ExecuteScalar<int>(sqlQuery, new { state = statusName });
             return count;
         }
 
@@ -174,12 +174,11 @@ with aggr as (
         where ""StatusName"" = N'Processing'
     group by to_char(""Added"", 'yyyy-MM-dd-HH')
 )
-select ""Key"",""Count"" from aggr where ""Key"" in @keys;";
+select ""Key"",""Count"" from aggr where ""Key""=Any(@keys);";
 
-            var valuesMap = connection.Query(
-                    sqlQuery,
-                    new {keys = keyMaps.Keys, statusName})
-                .ToDictionary(x => (string) x.Key, x => (int) x.Count);
+            var valuesMap = connection.Query(sqlQuery,new { keys = keyMaps.Keys.ToList(), statusName })
+                    .ToList()
+                    .ToDictionary(x => (string)x.Key, x => (int)x.Count);
 
             foreach (var key in keyMaps.Keys)
                 if (!valuesMap.ContainsKey(key)) valuesMap.Add(key, 0);
diff --git a/src/DotNetCore.CAP/IConsumerHandler.Default.cs b/src/DotNetCore.CAP/IConsumerHandler.Default.cs
index 63afaa1..5d6fb66 100644
--- a/src/DotNetCore.CAP/IConsumerHandler.Default.cs
+++ b/src/DotNetCore.CAP/IConsumerHandler.Default.cs
@@ -40,9 +40,9 @@ namespace DotNetCore.CAP
 
         public void Start()
         {
-            var groupingMatchs = _selector.GetCandidatesMethodsOfGroupNameGrouped();
+            var groupingMatches = _selector.GetCandidatesMethodsOfGroupNameGrouped();
 
-            foreach (var matchGroup in groupingMatchs)
+            foreach (var matchGroup in groupingMatches)
                 Task.Factory.StartNew(() =>
                 {
                     using (var client = _consumerClientFactory.Create(matchGroup.Key))