Deadlock on executing special kind of query

I try to write a loader from TVS format.
So i run the query like

client.Execute("CREATE TEMPORARY TABLE IF NOT EXISTS test_client (id UInt64, name String)");
client.Execute("insert into test_client FORMAT TSV\n");

and got deadlock in
client.Execute("insert into test_client FORMAT TSV\n");

The client waits answer from server - the ServerCodes::EndOfStream code.
The server also waits something. I think it waits some data. What data format is it waiting?
How to send the data that server waiting?

May be it is bug of the clickhouse server.