func (b *executorBuilder) buildUnion(v *plan.Union) Executor {
e := &UnionExec{
schema: v.GetSchema(),
fields: v.Fields(),
Sels: make([]Executor, len(v.Selects)),
}
for i, sel := range v.Selects {
selExec := b.build(sel)
e.Sels[i] = selExec
}
return e
}
func (b *executorBuilder) buildUnion(v *plan.Union) Executor {
e := &UnionExec{
schema: v.GetSchema(),
Srcs: make([]Executor, len(v.GetChildren())),
ctx: b.ctx,
}
for i, sel := range v.GetChildren() {
selExec := b.build(sel)
e.Srcs[i] = selExec
}
return e
}