private string MinTableName(ExpressionSqlBuilder builder)
{
string res;
TableClause tc1 = this.TableClause;
if (!(tc1.Table is TableDesc))
{
throw new Exception("Can not find alias table " + tc1.Table.ToStr());
}
ITableSource item = this.FindParentTableSource();
var arr = item.GetTables();
if (arr.Length == 1 && arr[0] == tc1)
{
return("");
}
while (item != null)
{
res = DoMinTableName(builder, item, tc1);
if (res != null)
{
return(res);
}
var t = item.FindParentTableSource();
if (t == item)
{
throw new Exception("internal parser error (132)");
}
item = t;
}
throw new Exception("Table clause not found in expression");
}