Function checkDatabaseAndTable

src/Optimizer/QueryUseOptimizerChecker.cpp:74–103

}

static bool checkDatabaseAndTable(String database_name, String table_name, ContextMutablePtr context, const NameSet & ctes)
{
    /// not with table
    if (database_name.empty() && ctes.contains(table_name))
        return true;

    /// If the database is not specified - use the current database.
    auto table_id = context->tryResolveStorageID(StorageID(database_name, table_name));
    auto storage_table = DatabaseCatalog::instance().tryGetTable(table_id, context);
    if (database_name.empty() && !storage_table)
        database_name = context->getCurrentDatabase();

    if (!storage_table)
        return false;

    if (database_name == "system")
        return true;

    if (dynamic_cast<const StorageView *>(storage_table.get()))
    {
        auto table_metadata_snapshot = storage_table->getInMemoryMetadataPtr();
        auto subquery = table_metadata_snapshot->getSelectQuery().inner_query;

        QueryUseOptimizerVisitor checker;
        QueryUseOptimizerContext check_context{.context = context};
        return ASTVisitorUtil::accept(subquery, checker, check_context);
    }

    return storage_table->supportsOptimizer();
}

bool QueryUseOptimizerChecker::check(ASTPtr node, ContextMutablePtr context, bool throw_exception)
{