Function createQueryContext

src/Databases/MySQL/MaterializedMySQLCommon.cpp:193–211

}

ContextMutablePtr createQueryContext(ContextPtr context, bool init_query)
{
    Settings new_query_settings = context->getSettings();
    new_query_settings.insert_allow_materialized_columns = true;

    /// To avoid call AST::format
    /// TODO: We need to implement the format function for MySQLAST
    new_query_settings.enable_global_with_statement = false;
    new_query_settings.force_manipulate_materialized_mysql_table = true;

    auto query_context = Context::createCopy(context);
    query_context->setSettings(new_query_settings);
    if (init_query)
        CurrentThread::QueryScope query_scope(query_context);

    query_context->getClientInfo().query_kind = ClientInfo::QueryKind::SECONDARY_QUERY;
    query_context->setCurrentQueryId(""); // generate random query_id
    return query_context;
}

MaterializedMySQLLogElement createMaterializeMySQLLog(MaterializedMySQLLogElement::EventSource event_source, MaterializedMySQLLogElement::Type type, String database, NameSet tables)
{