DataContext Close

If I run this Code

{
var db = new MyContext();
var x = db.SomeTable.ToList();
var y = db.SomeTable.ToList();
}

until context end i have 2 connections open (sleeping) on db, after context ends they are released.

but if i ran this code

{
var db = new MyContext();
db.OnTraceConnection = (e) =>
{
         if (e.TraceInfoStep == TraceInfoStep.Completed || e.TraceInfoStep == TraceInfoStep.Error)
                    e.DataConnection.Close();
};
var x = db.SomeTable.ToList();
var y = db.SomeTable.ToList();
}

until context end i have 1 connections open(sleeping) on db, after context ends this is released.

Environment details

linq2db version: 2.9.0 Database Server: Microsoft Sql Server Database Provider: SqlServerVersion.v2017 Operating system: Windows .NET Framework: 4.7.2

[sdanyliv]

@croban, fix prepared. I hope it will be released next Thursday.

[sdanyliv]

Also it is reproducible only for async version. Investigation needed.

[Test]
public void DataContextTest([IncludeDataSources(false, TestProvName.AllSqlServer)] string context)
{
	var db = new DataContext(context);
	for (int i = 0; i < 1000; i++)
	{
		var items1 = db.GetTable<Child>().ToArray();
	}
}

[Test]
public async Task DataContextTestAsync([IncludeDataSources(false, TestProvName.AllSqlServer)] string context)
{
	var db = new DataContext(context);
	for (int i = 0; i < 1000; i++)
	{
		var items1 = await db.GetTable<Child>().ToArrayAsync();
	}
}