### 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
this.bigArrays = bigArrays;
        this.blockFactory = blockFactory;
        this.exchangeSourceHandler = exchangeSourceHandler;
        this.exchangeSinkHandler = exchangeSinkHandler;
        this.enrichLookupService = enrichLookupService;
        this.physicalOperationProviders = physicalOperationProviders;
        this.configuration = configuration;
    }
    /**
     * turn the given plan into a list of drivers to execute
     */
    public LocalExecutionPlan plan(PhysicalPlan node) {
        var context = new LocalExecutionPlannerContext(
            new ArrayList<>(),
            new Holder<>(DriverParallelism.SINGLE),
            configuration.pragmas().taskConcurrency(),
            configuration.pragmas().dataPartitioning(),
            configuration.pragmas().pageSize(),
            bigArrays,
            blockFactory
        );
        PhysicalOperation physicalOperation = plan(node, context);
        context.addDriverFactory(
            new DriverFactory(
                new DriverSupplier(context.bigArrays, context.blockFactory, physicalOperation, configuration.pragmas().statusInterval()),
                context.driverParallelism().get()
            )
        );
        return new LocalExecutionPlan(context.driverFactories);
    }