diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/DbBind/QuestDBDbBind.cs b/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/DbBind/QuestDBDbBind.cs
index c387dfcb6..03d5eea3b 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/DbBind/QuestDBDbBind.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/DbBind/QuestDBDbBind.cs
@@ -67,6 +67,7 @@ namespace SqlSugar
                     new KeyValuePair<string, CSharpDataType>("int",CSharpDataType.@int),
                     new KeyValuePair<string, CSharpDataType>("integer",CSharpDataType.@int),
                     new KeyValuePair<string, CSharpDataType>("long",CSharpDataType.@long),
+                     new KeyValuePair<string, CSharpDataType>("bigint",CSharpDataType.@long),
                     new KeyValuePair<string, CSharpDataType>("long256",CSharpDataType.@long),
                     new KeyValuePair<string, CSharpDataType>("float",CSharpDataType.@float),
                     new KeyValuePair<string, CSharpDataType>("real",CSharpDataType.@float),
diff --git a/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/SqlBuilder/QuestDBInsertBuilder.cs b/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/SqlBuilder/QuestDBInsertBuilder.cs
index 476df37c2..d12feb302 100644
--- a/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/SqlBuilder/QuestDBInsertBuilder.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Realization/QuestDB/SqlBuilder/QuestDBInsertBuilder.cs
@@ -80,7 +80,7 @@ namespace SqlSugar
                             object value = null;
                             if (it.Value is DateTime)
                             {
-                               return $" cast('{it.Value.ObjToDate().ToString("yyyy-MM-dd HH:mm:ss.fff")}' as timestamp)";
+                               return $" cast('{it.Value.ObjToDate().ToString("yyyy-MM-dd HH:mm:ss.ffffff")}' as timestamp)";
                             }
                             else if (it.Value is int || it.Value is long ||it.Value is short || it.Value is short || it.Value is byte)
                             {