### Elasticsearch Version

main

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

all

### Problem Description

Do this

### Steps to Reproduce

```
rm /tmp/evil
for a in {0..9}; do
   for b in {0..9}; do
      echo '{"index": {}}' >> /tmp/evil
      echo '{"a": '$a', "b": '$b'}' >> /tmp/evil
   done
done
echo >> /tmp/evil

curl -uelastic:password -XDELETE localhost:9200/test
curl -HContent-Type:application/json -uelastic:password -XPUT localhost:9200/test
curl -HContent-Type:application/json -uelastic:password -XPOST localhost:9200/test/_bulk --data-binary @/tmp/evil
curl -HContent-Type:application/json -uelastic:password -XPOST localhost:9200/test/_forcemerge?max_num_segments=1
curl -HContent-Type:application/json -uelastic:password -XPOST localhost:9200/test/_refresh

curl -HContent-Type:application/json -uelastic:password -XPOST localhost:9200/_esql?pretty -d'{
   "query": "FROM test | STATS MAX(a) BY a, b | KEEP a"
}'
```

### Logs (if relevant)

_No response_
x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/planner/LocalExecutionPlanner.java
}
        void driverParallelism(DriverParallelism parallelism) {
            driverParallelism.set(parallelism);
        }
        int pageSize(Integer estimatedRowSize) {
            if (estimatedRowSize == null) {
                throw new IllegalStateException("estimated row size hasn't been set");
            }
            if (estimatedRowSize == 0) {
                throw new IllegalStateException("estimated row size can't be 0");
            }
            if (configuredPageSize != 0) {
                return configuredPageSize;
            }
            return Math.max(SourceOperator.MIN_TARGET_PAGE_SIZE, SourceOperator.TARGET_PAGE_SIZE / estimatedRowSize);
        }
    }
    record DriverSupplier(BigArrays bigArrays, BlockFactory blockFactory, PhysicalOperation physicalOperation, TimeValue statusInterval)
        implements
            Function<String, Driver>,
            Describable {
        @Override
        public Driver apply(String sessionId) {
            SourceOperator source = null;
            List<Operator> operators = new ArrayList<>();
            SinkOperator sink = null;
            boolean success = false;
            var driverContext = new DriverContext(bigArrays, blockFactory);
            try {
                source = physicalOperation.source(driverContext);