与Dapper sqlbuilder结合使用

Question

假设我想创建一个像这样的原始sql：

select a as code, b, c, d from tableA where b=@b and c=@c order by 1

这对于SQLBuilder很简单，我只是这样做（不能在代码上加上两个*）：

dim builder as new Dapper.sqlbuilder

dim op = builder.addTemplate("select /*select*/ from tableA where /*where*/ /*orderby*/)"

builder.select("a as code, b, c, d")
builder.where("b=@b", new with {.b ="22"}
builder.where("c=@c", new with {.c ="33"}

builder.orderby("1")

dim sSQL as string = op.rawsql

但是，如果我希望使用UNION合并两个语句：

select a as code, b, c, d from tableA where b=@b and c=@c UNION select substring(e, 0, 4) as code, b, c, d from tableA where b=@b and c=@c order by 1

请问有没有办法使用sql builder？

非常感谢