Method buildParameterizedViewStorage

src/Interpreters/Context.cpp:3103–3137

StoragePtr Context::buildParameterizedViewStorage(const String & database_name, const String & table_name, const NameToNameMap & param_values) const
{
    if (table_name.empty())
        return nullptr;

    StoragePtr original_view = DatabaseCatalog::instance().tryGetTable({database_name, table_name}, getQueryContext());
    if (!original_view || !original_view->isView())
        return nullptr;
    auto * storage_view = original_view->as<StorageView>();
    if (!storage_view || !storage_view->isParameterizedView())
        return nullptr;

    auto original_view_metadata = original_view->getInMemoryMetadataPtr(getQueryContext(), false);
    auto query = original_view_metadata->getSelectQuery().inner_query->clone();
    StorageView::replaceQueryParametersIfParameterizedView(query, param_values);

    ASTCreateQuery create;
    create.set(create.select, query);

    auto sql_security = make_intrusive<ASTSQLSecurity>();
    sql_security->type = original_view_metadata->sql_security_type;
    if (original_view_metadata->definer)
        sql_security->definer = make_intrusive<ASTUserNameWithHost>(*original_view_metadata->definer);
    create.set(create.sql_security, sql_security);

    auto view_context = original_view_metadata->getSQLSecurityOverriddenContext(shared_from_this());
    auto sample_block = InterpreterSelectQueryAnalyzer::getSampleBlock(query, view_context);
    auto res = std::make_shared<StorageView>(StorageID(database_name, table_name),
                                                create,
                                                ColumnsDescription(sample_block->getNamesAndTypesList()),
            /* comment */ "",
            /* is_parameterized_view */ true);
    res->startup();
    return res;
}


void Context::addViewSource(const StoragePtr & storage)