diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index ac32337..feaaed5 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -72,7 +72,7 @@ jobs:
         dotnet build --no-restore --configuration Release
 
     - name: Test
-      run: dotnet test -c Release --no-build --logger trx --results-directory "TestResults-${{ matrix.rid }}"
+      run: dotnet test -c Release /p:TestTfmsInParallel=false --logger "console;verbosity=detailed" --no-build --logger trx --results-directory "TestResults-${{ matrix.rid }}"
 
     # - name: Upload dotnet test results
     #   uses: actions/upload-artifact@v4
diff --git a/README.md b/README.md
index 42c6e14..ddec56d 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,12 @@ A .NET Core binding for [chdb](https://doc.chdb.io) library.
 ![NuGet Version](https://img.shields.io/nuget/vpre/chdb)
 ![NuGet Downloads](https://img.shields.io/nuget/dt/chdb)
 
+### Architecture
+
+<div align="center">
+  <img src="https://github.com/chdb-io/chdb-dotnet/raw/main/chdb-dotnet.png" width="450">
+</div>
+
 ### Usage
 
 Running on platforms: linux, osx, windows, and architectures: x64, arm64.
@@ -102,7 +108,7 @@ chdb "select * from system.formats where is_output = 1" PrettyCompact
 # Build
 
 ```bash
-./update_libchdb.sh [v1.2.1]
+./update_libchdb.sh [v2.0.4]
 cp libchdb.so src/chdb/
 dotnet build -c Release
 dotnet test -c Release
@@ -115,3 +121,4 @@ chdb --version
 ## Authors
 
 * [Andreas Vilinski](https://github.com/vilinski)
+* [Auxten](https://github.com/auxten)
diff --git a/chdb-dotnet.png b/chdb-dotnet.png
new file mode 100644
index 0000000..4c5083c
Binary files /dev/null and b/chdb-dotnet.png differ
diff --git a/src/chdb/Session.cs b/src/chdb/Session.cs
index fb3c082..5c8bdfb 100644
--- a/src/chdb/Session.cs
+++ b/src/chdb/Session.cs
@@ -21,7 +21,7 @@ public record Session : IDisposable
 
     public void Dispose()
     {
-        if (!IsTemp && DataPath?.EndsWith("chdb_") == true && Directory.Exists(DataPath))
+        if (IsTemp && DataPath?.EndsWith("chdb_") == true && Directory.Exists(DataPath))
             Directory.Delete(DataPath, true);
     }
 
diff --git a/test/ChDbTest/ChDbTest.cs b/test/ChDbTest/ChDbTest.cs
index cec8f44..3c08703 100644
--- a/test/ChDbTest/ChDbTest.cs
+++ b/test/ChDbTest/ChDbTest.cs
@@ -1,204 +1,211 @@
-namespace ChDb;
-
-[TestClass]
-public class ChDbTest
-{
-    [TestMethod]
-    public void QueryVersionTest()
-    {
-        var result = ChDb.Query("select version()");
-        Assert.IsNotNull(result);
-        Assert.AreEqual(1UL, result.RowsRead);
-        Assert.AreEqual(52UL, result.BytesRead);
-        Assert.AreEqual("23.10.1.1\n", result.Text);
-        Assert.IsNull(result.ErrorMessage);
-        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
-    }
-
-    [TestMethod]
-    public void QueryErrorTest()
-    {
-        Assert.ThrowsException<ArgumentNullException>(() => ChDb.Query(null!));
-        // TODO behavior changed in 1.2.1
-        var r1 = ChDb.Query("wrong_query");
-        Assert.IsNotNull(r1);
-        Assert.IsNull(r1.Text);
-        Assert.IsNotNull(r1.ErrorMessage);
-
-        var r2 = ChDb.Query("wrong_query", "PrettyCompact");
-        Assert.IsNotNull(r2);
-        Assert.IsNull(r2.Text);
-        Assert.IsNotNull(r2.ErrorMessage);
-
-        var r3 = ChDb.Query("select version()", "wrong_format");
-        Assert.IsNotNull(r3);
-        Assert.IsNull(r3.Text);
-        StringAssert.Contains(r3.ErrorMessage, "Unknown output format");
-    }
-
-    [TestMethod]
-    public void NoDataTest()
-    {
-        var result = ChDb.Query("create table x(a UInt8, b UInt8, c UInt8) Engine=Memory");
-        Assert.IsNotNull(result);
-        Assert.AreEqual(0UL, result.RowsRead);
-        Assert.AreEqual(0UL, result.BytesRead);
-        Assert.IsNull(result.Text);
-        Assert.IsNull(result.ErrorMessage);
-        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
-        Assert.IsTrue(0.1 > result.Elapsed.TotalSeconds);
-    }
-
-    [TestMethod]
-    public void EmptyResultTest()
-    {
-        var result = ChDb.Query("show tables");
-        Assert.IsNotNull(result);
-        Assert.AreEqual(0UL, result.RowsRead);
-        Assert.AreEqual(0UL, result.BytesRead);
-        Assert.AreEqual("", result.Text);
-        Assert.IsNull(result.ErrorMessage);
-        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
-        Assert.IsTrue(0.1 > result.Elapsed.TotalSeconds);
-    }
-
-    [TestMethod]
-    public void RowNumberTest()
-    {
-        var result = ChDb.Query("SELECT * FROM numbers(10)");
-        Assert.IsNotNull(result);
-        Assert.AreEqual(10UL, result.RowsRead);
-    }
-
-    [TestMethod]
-    public void FormatTest()
-    {
-        Assert.AreEqual("1\t2\t3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c")!.Text);
-        Assert.AreEqual("1,2,3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSV")!.Text);
-        Assert.AreEqual("\"a\",\"b\",\"c\"\n1,2,3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSVWithNames")!.Text);
-        StringAssert.Contains(ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSVWithNamesAndTypes")!.Text, "UInt8");
-    }
-
-    [TestMethod]
-    public void InMemoryTest()
-    {
-        var sql =
-            """
-            create table test (a UInt8, b UInt8, c UInt8) Engine=Memory;
-            insert into test values (1, 2, 3);
-            select * from test; show tables;
-            drop table test;show tables
-            """;
-        var result = ChDb.Query(sql);
-        Assert.IsNotNull(result);
-        Assert.AreEqual("", result.Text);
-        Assert.AreEqual(null, result.ErrorMessage);
-    }
-
-    [TestMethod]
-    public void S3ParquetTest()
-    {
-        var result = ChDb.Query("DESCRIBE s3('https://datasets-documentation.s3.eu-west-3.amazonaws.com/house_parquet/house_0.parquet')");
-        Assert.IsNotNull(result);
-        Assert.IsNull(result.ErrorMessage);
-        StringAssert.StartsWith(result.Text, "price\tNullable(Int64)");
-    }
-
-    [TestMethod]
-    public void S3CountTest()
-    {
-        var result = ChDb.Query(
-            """
-            SELECT count()
-            FROM s3('https://datasets-documentation.s3.eu-west-3.amazonaws.com/house_parquet/house_0.parquet')
-            """);
-        Assert.IsNotNull(result);
-        Assert.IsNull(result.ErrorMessage);
-        Assert.IsTrue(int.TryParse(result.Text, out var count));
-        Assert.AreEqual(2772030, count);
-    }
-
-    [TestMethod]
-    public void CsvTest()
-    {
-        var csv = """
-            Name, Age, City
-            John, 25, New York
-            Alice, 30, London
-            Bob, 22, Tokyo
-            Eva, 28, Paris
-            """;
-        var dataPath = "/tmp/chdb/data";
-        Directory.CreateDirectory(dataPath);
-        File.WriteAllText(Path.Combine(".", "test.csv"), csv);
-        var session = new Session
-        {
-            Format = "PrettyCompact",
-            DataPath = dataPath,
-            LogLevel = "trace",
-        };
-        var result = session.Query("SELECT * FROM 'test.csv'", "CSVWithNamesAndTypes");
-        Assert.IsNotNull(result);
-        Assert.AreEqual(4UL, result.RowsRead);
-        Assert.AreEqual(155UL, result.BytesRead);
-        StringAssert.StartsWith(result.Text,
-            """
-            "Name","Age","City"
-            """);
-    }
-
-    [TestMethod]
-    public void SessionTest()
-    {
-        using var s = new Session
-        {
-            Format = "PrettyCompact",
-            LogLevel = "trace",
-        };
-        var nr = "xyz";
-
-        Assert.IsNull(s.Query($"select version()")?.ErrorMessage);
-
-        // chdb creates "_local" database instead of "default" in clickhouse
-        StringAssert.Contains(s.Query($"SHOW DATABASES")?.Text, "_local");
-        StringAssert.Contains(s.Query($"SELECT currentDatabase()")?.Text, "_local");
-        Assert.AreEqual("", s.Query($"SHOW TABLES")?.Text);
-
-        var r1 = s.Query($"DROP DATABASE IF EXISTS db_{nr}");
-        Assert.IsNotNull(r1);
-        Assert.IsNull(r1.Text);
-        Assert.IsNull(r1.ErrorMessage);
-
-        var r2 = s.Query($"CREATE DATABASE IF NOT EXISTS db_{nr} ENGINE = Atomic");
-        Assert.IsNotNull(r2);
-        Assert.IsNull(r2.Text);
-        Assert.IsNull(r2.ErrorMessage);
-
-        var r3 = s.Query($"CREATE TABLE IF NOT EXISTS db_{nr}.log_table_{nr} (x String, y Int) ENGINE = Log;");
-        Assert.IsNotNull(r3);
-        Assert.IsNull(r3.Text);
-        Assert.IsNull(r3.ErrorMessage);
-
-        var r4 = s.Query($"INSERT INTO db_{nr}.log_table_{nr} VALUES ('a', 1), ('b', 3), ('c', 2), ('d', 5);");
-        Assert.IsNotNull(r4);
-        Assert.IsNull(r4.Text);
-        Assert.IsNull(r4.ErrorMessage);
-
-        var r5 = s.Query($"SELECT * FROM db_{nr}.log_table_{nr}", "TabSeparatedWithNames");
-        Assert.IsNotNull(r5);
-        Assert.AreEqual("x\ty\na\t1\nb\t3\nc\t2\nd\t5\n", r5.Text);
-        Assert.IsNull(r5.ErrorMessage);
-
-        var r6 = s.Query($"CREATE VIEW db_{nr}.view_{nr} AS SELECT * FROM db_{nr}.log_table_{nr} LIMIT 4;");
-        Assert.IsNotNull(r6);
-        Assert.IsNull(r6.Text);
-        Assert.IsNull(r6.ErrorMessage);
-
-        var r7 = s.Query($"SELECT * FROM db_{nr}.view_{nr}", "TabSeparatedWithNames");
-        Assert.IsNotNull(r7);
-        Assert.AreEqual("x\ty\na\t1\nb\t3\nc\t2\nd\t5\n", r7.Text);
-        Assert.IsNull(r7.ErrorMessage);
-
-        s.Query($"DROP DATABASE IF EXISTS db_{nr}");
-    }
-}
\ No newline at end of file
+namespace ChDb;
+
+[TestClass]
+public class ChDbTest
+{
+    [TestMethod]
+    public void QueryVersionTest()
+    {
+        var result = ChDb.Query("select version()");
+        Assert.IsNotNull(result);
+        Assert.AreEqual(1UL, result.RowsRead);
+        Assert.AreEqual(50UL, result.BytesRead);
+        Assert.AreEqual("24.5.1.1\n", result.Text);
+        Assert.IsNull(result.ErrorMessage);
+        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
+    }
+
+    [TestMethod]
+    public void QueryErrorTest()
+    {
+        Assert.ThrowsException<ArgumentNullException>(() => ChDb.Query(null!));
+        // TODO behavior changed in 1.2.1
+        var r1 = ChDb.Query("wrong_query");
+        Assert.IsNotNull(r1);
+        Assert.IsNull(r1.Text);
+        Assert.IsNotNull(r1.ErrorMessage);
+
+        var r2 = ChDb.Query("wrong_query", "PrettyCompact");
+        Assert.IsNotNull(r2);
+        Assert.IsNull(r2.Text);
+        Assert.IsNotNull(r2.ErrorMessage);
+
+        var r3 = ChDb.Query("select version()", "wrong_format");
+        Assert.IsNotNull(r3);
+        Assert.IsNull(r3.Text);
+        StringAssert.Contains(r3.ErrorMessage, "Unknown output format");
+    }
+
+    [TestMethod]
+    public void NoDataTest()
+    {
+        var result = ChDb.Query("create table x(a UInt8, b UInt8, c UInt8) Engine=Memory");
+        Assert.IsNotNull(result);
+        Assert.AreEqual(0UL, result.RowsRead);
+        Assert.AreEqual(0UL, result.BytesRead);
+        Assert.IsNull(result.Text);
+        Assert.IsNull(result.ErrorMessage);
+        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
+        Assert.IsTrue(0.1 > result.Elapsed.TotalSeconds);
+    }
+
+    [TestMethod]
+    public void EmptyResultTest()
+    {
+        var result = ChDb.Query("show tables");
+        Assert.IsNotNull(result);
+        Assert.AreEqual(0UL, result.RowsRead);
+        Assert.AreEqual(0UL, result.BytesRead);
+        Assert.AreEqual("", result.Text);
+        Assert.IsNull(result.ErrorMessage);
+        Assert.AreNotEqual(TimeSpan.Zero, result.Elapsed);
+        Assert.IsTrue(0.1 > result.Elapsed.TotalSeconds);
+    }
+
+    [TestMethod]
+    public void RowNumberTest()
+    {
+        var result = ChDb.Query("SELECT * FROM numbers(10)");
+        Assert.IsNotNull(result);
+        Assert.AreEqual(10UL, result.RowsRead);
+    }
+
+    [TestMethod]
+    public void FormatTest()
+    {
+        Assert.AreEqual("1\t2\t3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c")!.Text);
+        Assert.AreEqual("1,2,3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSV")!.Text);
+        Assert.AreEqual("\"a\",\"b\",\"c\"\n1,2,3\n", ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSVWithNames")!.Text);
+        StringAssert.Contains(ChDb.Query("SELECT 1 as a, 2 b, 3 c", "CSVWithNamesAndTypes")!.Text, "UInt8");
+    }
+
+    [TestMethod]
+    public void InMemoryTest()
+    {
+        var sql =
+            """
+            create table test (a UInt8, b UInt8, c UInt8) Engine=Memory;
+            insert into test values (1, 2, 3);
+            select * from test; show tables;
+            drop table test;show tables
+            """;
+        var result = ChDb.Query(sql);
+        Assert.IsNotNull(result);
+        Assert.AreEqual("", result.Text);
+        Assert.AreEqual(null, result.ErrorMessage);
+    }
+
+    [TestMethod]
+    public void S3ParquetTest()
+    {
+        var result = ChDb.Query("DESCRIBE s3('https://datasets-documentation.s3.eu-west-3.amazonaws.com/house_parquet/house_0.parquet')");
+        Assert.IsNotNull(result);
+        Assert.IsNull(result.ErrorMessage);
+        StringAssert.StartsWith(result.Text, "price\tNullable(Int64)");
+    }
+
+    [TestMethod]
+    public void S3CountTest()
+    {
+        var result = ChDb.Query(
+            """
+            SELECT count()
+            FROM s3('https://datasets-documentation.s3.eu-west-3.amazonaws.com/house_parquet/house_0.parquet')
+            """);
+        Assert.IsNotNull(result);
+        Assert.IsNull(result.ErrorMessage);
+        Assert.IsTrue(int.TryParse(result.Text, out var count));
+        Assert.AreEqual(2772030, count);
+    }
+
+    [TestMethod]
+    public void CsvTest()
+    {
+        var csv = """
+            Name, Age, City
+            John, 25, New York
+            Alice, 30, London
+            Bob, 22, Tokyo
+            Eva, 28, Paris
+            """;
+        var dataPath = "/tmp/chdb/data";
+        if (Directory.Exists(dataPath))
+            Directory.Delete(dataPath, true);
+        Directory.CreateDirectory(dataPath);
+        File.WriteAllText(Path.Combine(".", "test.csv"), csv);
+        using var session = new Session
+        {
+            IsTemp = false,
+            Format = "PrettyCompact",
+            DataPath = dataPath,
+            LogLevel = "trace",
+        };
+        var result = session.Query("SELECT * FROM 'test.csv'", "CSVWithNamesAndTypes");
+        // Console.WriteLine($"Error message:\n{result?.ErrorMessage}");
+        // Console.WriteLine($"Query result:\n{result?.Text}");
+        Assert.IsNotNull(result);
+        Assert.AreEqual(4UL, result.RowsRead);
+        Assert.AreEqual(155UL, result.BytesRead);
+        StringAssert.StartsWith(result.Text,
+            """
+            "Name","Age","City"
+            """);
+    }
+
+    [TestMethod]
+    public void SessionTest()
+    {
+        using var s = new Session
+        {
+            Format = "PrettyCompact",
+            LogLevel = "trace",
+        };
+        var nr = "xyz";
+
+        var result = s.Query($"select version()");
+        // Console.WriteLine($"Error message:\n{result?.ErrorMessage}");
+        // Console.WriteLine($"Query result:\n{result?.Text}");
+        Assert.IsNull(s.Query($"select version()")?.ErrorMessage);
+
+        StringAssert.Contains(s.Query($"SHOW DATABASES")?.Text, "default");
+        StringAssert.Contains(s.Query($"SELECT currentDatabase()")?.Text, "default");
+        Assert.AreEqual("", s.Query($"SHOW TABLES")?.Text);
+
+        var r1 = s.Query($"DROP DATABASE IF EXISTS db_{nr}");
+        Assert.IsNotNull(r1);
+        Assert.IsNull(r1.Text);
+        Assert.IsNull(r1.ErrorMessage);
+
+        var r2 = s.Query($"CREATE DATABASE IF NOT EXISTS db_{nr} ENGINE = Atomic");
+        Assert.IsNotNull(r2);
+        Assert.IsNull(r2.Text);
+        Assert.IsNull(r2.ErrorMessage);
+
+        var r3 = s.Query($"CREATE TABLE IF NOT EXISTS db_{nr}.log_table_{nr} (x String, y Int) ENGINE = Log;");
+        Assert.IsNotNull(r3);
+        Assert.IsNull(r3.Text);
+        Assert.IsNull(r3.ErrorMessage);
+
+        var r4 = s.Query($"INSERT INTO db_{nr}.log_table_{nr} VALUES ('a', 1), ('b', 3), ('c', 2), ('d', 5);");
+        Assert.IsNotNull(r4);
+        Assert.IsNull(r4.Text);
+        Assert.IsNull(r4.ErrorMessage);
+
+        var r5 = s.Query($"SELECT * FROM db_{nr}.log_table_{nr}", "TabSeparatedWithNames");
+        Assert.IsNotNull(r5);
+        Assert.AreEqual("x\ty\na\t1\nb\t3\nc\t2\nd\t5\n", r5.Text);
+        Assert.IsNull(r5.ErrorMessage);
+
+        var r6 = s.Query($"CREATE VIEW db_{nr}.view_{nr} AS SELECT * FROM db_{nr}.log_table_{nr} LIMIT 4;");
+        Assert.IsNotNull(r6);
+        Assert.IsNull(r6.Text);
+        Assert.IsNull(r6.ErrorMessage);
+
+        var r7 = s.Query($"SELECT * FROM db_{nr}.view_{nr}", "TabSeparatedWithNames");
+        Assert.IsNotNull(r7);
+        Assert.AreEqual("x\ty\na\t1\nb\t3\nc\t2\nd\t5\n", r7.Text);
+        Assert.IsNull(r7.ErrorMessage);
+
+        s.Query($"DROP DATABASE IF EXISTS db_{nr}");
+    }
+}
diff --git a/update_libchdb.sh b/update_libchdb.sh
index 8d7a2ea..f5d84d4 100755
--- a/update_libchdb.sh
+++ b/update_libchdb.sh
@@ -23,7 +23,8 @@ case "$(uname -s)" in
 esac
 
 # Get the newest release version
-LATEST_RELEASE=$(curl --silent "https://api.github.com/repos/chdb-io/chdb/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+# LATEST_RELEASE=$(curl --silent "https://api.github.com/repos/chdb-io/chdb/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')
+LATEST_RELEASE=v2.0.4
 RELEASE=${1:-$LATEST_RELEASE}
 
 DOWNLOAD_URL="https://github.com/chdb-io/chdb/releases/download/$RELEASE/$PLATFORM-libchdb.tar.gz"