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Fix bug with negative keys

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This commit is contained in:
Bojan Serafimov
2022-12-13 22:46:13 -05:00
parent db72f432e5
commit de548acefc
1 changed files with 3 additions and 3 deletions
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6
pageserver/src/tenant/bst_layer_map.rs
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@@ -51,7 +51,7 @@ impl<Value: Clone> PersistentLayerMap<Value> {
/// Helper function to subdivide the key range without changing any values
fn add_node(self: &mut Self, key: i128) {
let value = match self.head.range(0..=key).last() {
let value = match self.head.range(..=key).last() {
Some((_, Some(v))) => Some(v.clone()),
Some((_, None)) => None,
None => None,
@@ -115,9 +115,9 @@ impl<Value: Clone> PersistentLayerMap<Value> {
}
pub fn query(self: &Self, key: i128, lsn: u64) -> Option<Value> {
let version = self.historic.range(0..=lsn).rev().next()?.1;
let version = self.historic.range(..=lsn).rev().next()?.1;
version
.range(0..=key)
.range(..=key)
.rev()
.next()?
.1