WT_CURSOR* WiredTigerSession::getCachedCursor(uint64_t id, const std::string& config) {
    // Find the most recently used cursor
    for (CursorCache::iterator i = _cursors.begin(); i != _cursors.end(); ++i) {
        // Ensure that all properties of this cursor are identical to avoid mixing cursor
        // configurations. Note that this uses an exact string match, so cursor configurations with
        // parameters in different orders will not be considered equivalent.
        if (i->_id == id && i->_config == config) {
            WT_CURSOR* c = i->_cursor;
            _cursors.erase(i);
            _cursorsOut++;
            return c;
        }
    }
    return nullptr;
}