Method IsConstQuery

src/sdk/sql_cluster_router.cc:762–777

}

bool SQLClusterRouter::IsConstQuery(::hybridse::vm::PhysicalOpNode* node) {
    if (node->GetOpType() == ::hybridse::vm::kPhysicalOpConstProject) {
        return true;
    }

    if (node->GetProducerCnt() <= 0) {
        return false;
    }

    for (size_t i = 0; i < node->GetProducerCnt(); i++) {
        if (!IsConstQuery(node->GetProducer(i))) {
            return false;
        }
    }
    return true;
}
void SQLClusterRouter::GetTables(::hybridse::vm::PhysicalOpNode* node,
                                 std::set<std::string>* tables) {
    if (node == NULL || tables == NULL) return;