Introduce the query tree data structure

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many 2021-02-10 11:35:17 +01:00 committed by Kerollmops
parent 4e84999f20
commit 73286dc8bf
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@ -1,5 +1,3 @@
#![allow(unused)]
use std::borrow::Cow;
use std::collections::BTreeMap;
use std::{fmt, cmp, mem};