Function getTraits

src/Processors/QueryPlan/ExpressionStep.cpp:24–37

}

static ITransformingStep::Traits getTraits(const ActionsDAG & actions)
{
    return ITransformingStep::Traits
    {
        {
            .returns_single_stream = false,
            .preserves_number_of_streams = true,
            .preserves_sorting = false,
        },
        {
            .preserves_number_of_rows = !actions.hasArrayJoin(),
        }
    };
}

static bool containsCompiledFunction(const ActionsDAG::Node * node)
{