Use statement cache for selects

Author: simolus3

sqlite3_connection_pool/lib/src/pool.dart

@@ -376,21 +376,20 @@ base class AsyncConnection {
     List<Object?> parameters = const [],
   ]) {
     return unsafeAccessOnIsolate((conn) {
-      final resultSet = conn.database.select(sql);
-      // final cached = conn.lookupCachedStatement(sql);
-
-      // final ResultSet resultSet;
-      // if (cached != null) {
-      //   resultSet = cached.select(parameters);
-      //   cached.reset();
-      // } else {
-      //   final stmt = conn.database.prepare(sql, checkNoTail: true);
-      //   resultSet = stmt.select(parameters);
-      //   stmt.reset();
-      //   if (!conn.storeCachedStatement(sql, stmt)) {
-      //     stmt.close();
-      //   }
-      // }
+      final cached = conn.lookupCachedStatement(sql);
+
+      final ResultSet resultSet;
+      if (cached != null) {
+        resultSet = cached.select(parameters);
+        cached.reset();
+      } else {
+        final stmt = conn.database.prepare(sql, checkNoTail: true);
+        resultSet = stmt.select(parameters);
+        stmt.reset();
+        if (!conn.storeCachedStatement(sql, stmt)) {
+          stmt.close();
+        }
+      }
 
       return (resultSet, _execResult(conn.database));
     });