Method visitTableScanNode

src/Optimizer/PlanCheck.cpp:122–136

}

Void TableScanChecker::visitTableScanNode(TableScanNode & node, ContextMutablePtr & context)
{
    auto & step = node.getStep();
    auto storage = step->getStorage();
    if (!context->getSettingsRef().allow_map_access_without_key && storage && storage->supportsMapImplicitColumn())
    {
        Block header = storage->getStorageSnapshot(storage->getInMemoryMetadataPtr(), context)->getSampleBlockForColumns(step->getRequiredColumns());
        for (auto & col : header)
        {
            if (col.type->isByteMap())
                throw Exception("Map column access without key is not allowed for ByteMap", ErrorCodes::NOT_IMPLEMENTED);
        }
    }
    return {};
}
}