Exposes a function to compact the database

Use it after load

lib/benches/store.rs

@@ -43,6 +43,7 @@ fn do_load(store: &Store, data: &[u8]) {
             None,
         )
         .unwrap();
+    store.optimize().unwrap();
 }
 
 fn store_query_and_update(c: &mut Criterion) {

lib/src/storage/backend/rocksdb.rs

@@ -304,7 +304,6 @@ impl Db {
         }
     }
 
-    #[cfg(test)]
     #[allow(clippy::unnecessary_wraps)]
     pub fn compact(&self, column_family: &ColumnFamily) -> Result<()> {
         unsafe {

lib/src/storage/mod.rs

@@ -841,6 +841,21 @@ impl Storage {
         self.db.flush(&self.id2str_cf)
     }
 
+    #[cfg(not(target_arch = "wasm32"))]
+    pub fn compact(&self) -> Result<()> {
+        self.db.compact(&self.default_cf)?;
+        self.db.compact(&self.gpos_cf)?;
+        self.db.compact(&self.gpos_cf)?;
+        self.db.compact(&self.gosp_cf)?;
+        self.db.compact(&self.spog_cf)?;
+        self.db.compact(&self.posg_cf)?;
+        self.db.compact(&self.ospg_cf)?;
+        self.db.compact(&self.dspo_cf)?;
+        self.db.compact(&self.dpos_cf)?;
+        self.db.compact(&self.dosp_cf)?;
+        self.db.compact(&self.id2str_cf)
+    }
+
     pub fn get_str(&self, key: &StrHash) -> Result<Option<String>> {
         self.db
             .get(&self.id2str_cf, &key.to_be_bytes())?

lib/src/store.rs

@@ -561,6 +561,16 @@ impl Store {
     pub fn flush(&self) -> io::Result<()> {
         self.storage.flush()
     }
+
+    /// Optimizes the database for future workload.
+    ///
+    /// Useful to call after a batch upload or an other similar operation.
+    ///
+    /// Warning: Can take hours on huge databases.
+    #[cfg(not(target_arch = "wasm32"))]
+    pub fn optimize(&self) -> io::Result<()> {
+        self.storage.compact()
+    }
 }
 
 impl fmt::Display for Store {