/// <summary>
/// Begins a textual COPY FROM STDIN operation, a data import mechanism to a PostgreSQL table.
/// It is the user's responsibility to send the textual input according to the format specified
/// in <paramref name="copyFromCommand"/>.
/// </summary>
/// <param name="copyFromCommand">A COPY FROM STDIN SQL command</param>
/// <returns>
/// A TextWriter that can be used to send textual data.</returns>
/// <remarks>
/// See http://www.postgresql.org/docs/current/static/sql-copy.html.
/// </remarks>
public TextWriter BeginTextImport(string copyFromCommand)
{
if (copyFromCommand == null)
{
throw new ArgumentNullException("copyFromCommand");
}
if (!copyFromCommand.TrimStart().ToUpper().StartsWith("COPY"))
{
throw new ArgumentException("Must contain a COPY IN command!", "copyFromCommand");
}
Contract.EndContractBlock();
CheckConnectionOpen();
Connector.StartUserAction(ConnectorState.Copy);
var writer = new NpgsqlCopyTextWriter(new NpgsqlRawCopyStream(Connector, copyFromCommand));
Connector.CurrentCopyOperation = writer;
return(writer);
}
public NpgsqlCopyTextWriterWrapper(NpgsqlCopyTextWriter writer)
{
this.writer = writer;
}