3 files changed, 39 insertions, 10 deletions
diff --git a/database/src/kv/binning.rs b/database/src/kv/binning.rs
index 42e58fc..c41d6e9 100644
--- a/database/src/kv/binning.rs
+++ b/database/src/kv/binning.rs
@@ -4,7 +4,7 @@
     Copyright (C) 2026 metamuffin <metamuffin.org>
 */
 
-use crate::Filter;
+use crate::{Filter, Value};
 use jellyobject::{Object, Path};
 
 /// Sorted list of components to bin objects by filtered values.
@@ -88,8 +88,7 @@ impl Filter {
             Filter::Match(path, value) => {
                 vec![vec![(BinningComponent::Match(path.to_owned()), {
                     let mut co = Vec::new();
-                    co.extend((value.len() as u32).to_be_bytes());
-                    co.extend(value);
+                    value.write_with_len(&mut co);
                     co
                 })]]
             }
@@ -100,6 +99,37 @@ impl Filter {
     }
 }
 
+impl Value {
+    pub fn write_with_len(&self, out: &mut Vec<u8>) {
+        match self {
+            Value::Tag(tag) => {
+                out.extend(4u32.to_be_bytes());
+                out.extend(tag.0.to_be_bytes());
+            }
+            Value::U32(x) => {
+                out.extend(4u32.to_be_bytes());
+                out.extend(x.to_be_bytes());
+            }
+            Value::U64(x) => {
+                out.extend(8u32.to_be_bytes());
+                out.extend(x.to_be_bytes());
+            }
+            Value::I64(x) => {
+                out.extend(8u32.to_be_bytes());
+                out.extend(x.to_be_bytes());
+            }
+            Value::String(s) => {
+                out.extend((s.len() as u32).to_be_bytes());
+                out.extend(s.as_bytes());
+            }
+            Value::Binary(s) => {
+                out.extend((s.len() as u32).to_be_bytes());
+                out.extend(s);
+            }
+        }
+    }
+}
+
 #[cfg(test)]
 mod test {
     use jellyobject::{Path, Tag};
diff --git a/database/src/kv/mod.rs b/database/src/kv/mod.rs
index f5dcc72..f90f07e 100644
--- a/database/src/kv/mod.rs
+++ b/database/src/kv/mod.rs
@@ -14,8 +14,6 @@ pub mod sort;
 #[cfg(test)]
 pub mod tests;
 
-use std::borrow::Cow;
-
 use crate::{
     Database, Query, RowNum, Transaction,
     kv::{
@@ -29,6 +27,7 @@ use crate::{
 use anyhow::{Result, anyhow};
 use jellyobject::ObjectBuffer;
 use log::{debug, info};
+use std::borrow::Cow;
 
 pub type SubtreeNum = u32;
 
diff --git a/database/src/kv/tests.rs b/database/src/kv/tests.rs
index 5b587ed..85ee5d7 100644
--- a/database/src/kv/tests.rs
+++ b/database/src/kv/tests.rs
@@ -1,5 +1,5 @@
 use crate::{
-    Database, Filter, Query, Sort,
+    Database, Filter, Query, Sort, Value,
     test_shared::{AGE, NAME, new_alice, new_bob, new_charlie},
 };
 use anyhow::Result;
@@ -67,7 +67,7 @@ pub fn query_match_int() -> Result<()> {
     })?;
     db.transaction(&mut |txn| {
         result = txn.query_single(Query {
-            filter: Filter::Match(Path(vec![AGE.0]), 35_u32.to_be_bytes().to_vec()),
+            filter: Filter::Match(Path(vec![AGE.0]), Value::U32(35)),
             sort: Sort::None,
         })?;
         Ok(())
@@ -94,7 +94,7 @@ pub fn query_match_str() -> Result<()> {
     })?;
     db.transaction(&mut |txn| {
         result = txn.query_single(Query {
-            filter: Filter::Match(Path(vec![NAME.0]), "Alice".as_bytes().to_vec()),
+            filter: Filter::Match(Path(vec![NAME.0]), "Alice".into()),
             sort: Sort::None,
         })?;
         Ok(())
@@ -113,7 +113,7 @@ pub fn query_match_str_after() -> Result<()> {
 
     db.transaction(&mut |txn| {
         result = txn.query_single(Query {
-            filter: Filter::Match(Path(vec![NAME.0]), "Alice".as_bytes().to_vec()),
+            filter: Filter::Match(Path(vec![NAME.0]), "Alice".into()),
             sort: Sort::None,
         })?;
         Ok(())
@@ -131,7 +131,7 @@ pub fn query_match_str_after() -> Result<()> {
 
     db.transaction(&mut |txn| {
         result = txn.query_single(Query {
-            filter: Filter::Match(Path(vec![NAME.0]), "Alice".as_bytes().to_vec()),
+            filter: Filter::Match(Path(vec![NAME.0]), "Alice".into()),
             sort: Sort::None,
         })?;
         Ok(())