MssqlOutputTarget.variable constructor
A DECLARE @name TABLE (…) variable in the same batch.
The name is checked against SQL Server's rule for a regular variable
rather than quoted, because @ is part of the name and a quoted
identifier is not a variable.
Implementation
MssqlOutputTarget.variable(
String name, {
Iterable<String> columns = const <String>[],
}) : quoted = _checkedVariable(name),
columns = List<String>.unmodifiable(columns);