fix expr grouping

src/parse/cozoscript/query.rs

@@ -534,6 +534,7 @@ fn build_unary(pair: Pair<'_>) -> Result<JsonValue> {
                         .try_collect()?;
                     json!({"op": ident, "args": args})
                 }
+                Rule::grouping => build_expr(p.into_inner().next().unwrap())?,
 
                 r => unreachable!("Encountered unknown op {:?}", r),
             })

tests/air_routes.rs

@@ -100,7 +100,7 @@ fn air_routes() -> Result<()> {
     let dfs_time = Instant::now();
     let res = db.run_script(r#"
         starting <- [['PEK']];
-        res <- dfs!([?id <airport.iata ?code], :flies_to_code[], starting[], condition: ?code == 'LHR');
+        res <- dfs!([?id <airport.iata ?code], :flies_to_code[], starting[], condition: (?code == 'LHR'));
         ?[?path] := res[?path];
     "#)?;
     dbg!(dfs_time.elapsed());
@@ -115,7 +115,6 @@ fn air_routes() -> Result<()> {
     dbg!(bfs_time.elapsed());
     println!("{}", res);
 
-    return Ok(());
     let deg_centrality_time = Instant::now();
     let res = db.run_script(
         r#"