go - FieldA.Eq 未定义(类型 cqlc.BooleanColumn 没有字段或方法 Eq)

Question

我正在使用 cqlc 查询 cassandra。当我尝试运行 SELECT 语句时

    ctx := cqlc.NewContext()
    iter, err := ctx.Select().
                 From(X).
                 Where(
                   X.A.Eq(true),
                   X.B.Eq(cityID)).
                 Fetch(c.session)

它抛出以下错误

X.A.Eq undefined (type cqlc.BooleanColumn has no field or method Eq)

X.A 是一个 bool 列

Answer 1

type BooleanColumn

type BooleanColumn interface {
    Column
    To(value *bool) ColumnBinding
}

---

type EqualityBooleanColumn

type EqualityBooleanColumn interface {
    BooleanColumn
    Eq(value bool) Condition
}

---

X.A.Eq undefined (type cqlc.BooleanColumn has no field or method Eq)

没错。