better logging for : TupleAggregateStep::doThreadedAggregate() MCS-2056: There was an IO error during a disk-based aggregation: No such file or directory

Given the logline:

Jul 7 15:00:07 mcs1-20250618 joblist[6117]: 07.109616 |163|0|0| C 05 CAL0000: TupleAggregateStep::doThreadedAggregate() MCS-2056: There was an IO error during a disk-based aggregation: No such file or directory %%10%%

The usual root causes not match.

It happens with 23.10.4
NO UDAFs are involved in the query.
No GROUP_CONCAT or JSON_ARRAYAGG is used

There is only one place , where this error can be triggered

The catch block

  catch (...)

  {

    handleException(std::current_exception(), logging::tupleAggregateStepErr,

                    logging::ERR_AGGREGATION_TOO_BIG, "TupleAggregateStep::doThreadedAggregate()");

    fEndOfResult = true;

  }

from

uint64_t TupleAggregateStep::doThreadedAggregate(ByteStream& bs, RowGroupDL* dlp)

in

tupleaggregatestep.cpp

We might have here a new possibility, why this error occur,
where the message "No such file or directory" is not sufficient to explain the error.

Also
ERR_AGGREGATION_TOO_BIG
must be correct, so more information must be logged to investigate the root cause here.