I was hitting this exception with `from * | limit 10` with the security rally track.

```
java.lang.IllegalArgumentException: Unknown writeable [org.elasticsearch.xpack.ql.type.EsField][InvalidMappedField]
	at org.elasticsearch.xpack.esql.io.stream.PlanNameRegistry.throwOnUnknownWritable(PlanNameRegistry.java:252) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNameRegistry.getWriter(PlanNameRegistry.java:217) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNameRegistry.getWriter(PlanNameRegistry.java:232) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanStreamOutput.writeNamed(PlanStreamOutput.java:76) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNamedTypes.writeFieldAttribute(PlanNamedTypes.java:793) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanStreamOutput.writeNamed(PlanStreamOutput.java:78) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanStreamOutput.writeAttribute(PlanStreamOutput.java:61) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNameRegistry$PlanWriter.write(PlanNameRegistry.java:46) ~[?:?]
	at org.elasticsearch.common.io.stream.StreamOutput.writeCollection(StreamOutput.java:1060) ~[elasticsearch-8.11.0-SNAPSHOT.jar:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNamedTypes.writeAttributes(PlanNamedTypes.java:764) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanNamedTypes.writeExchangeSinkExec(PlanNamedTypes.java:485) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanStreamOutput.writeNamed(PlanStreamOutput.java:78) ~[?:?]
	at org.elasticsearch.xpack.esql.io.stream.PlanStreamOutput.writePhysicalPlanNode(PlanStreamOutput.java:49) ~[?:?]
	at org.elasticsearch.xpack.esql.plugin.DataNodeRequest.writeTo(DataNodeRequest.java:72) ~[?:?]
```
x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/io/stream/PlanNamedTypes.java
out.writeBoolean(alias.synthetic());
    }
    
    static Literal readLiteral(PlanStreamInput in) throws IOException {
        return new Literal(Source.EMPTY, in.readGenericValue(), in.dataTypeFromTypeName(in.readString()));
    }
    static void writeLiteral(PlanStreamOutput out, Literal literal) throws IOException {
        out.writeGenericValue(literal.value());
        out.writeString(literal.dataType().typeName());
    }
    static Order readOrder(PlanStreamInput in) throws IOException {
        return new Order(
            Source.EMPTY,
            in.readNamed(Expression.class),
            in.readEnum(Order.OrderDirection.class),
            in.readEnum(Order.NullsPosition.class)
        );
    }
    static void writeOrder(PlanStreamOutput out, Order order) throws IOException {
        out.writeExpression(order.child());
        out.writeEnum(order.direction());
        out.writeEnum(order.nullsPosition());
    }
    
    static EsQueryExec.FieldSort readFieldSort(PlanStreamInput in) throws IOException {
        return new EsQueryExec.FieldSort(
            readFieldAttribute(in),
            in.readEnum(Order.OrderDirection.class),
            in.readEnum(Order.NullsPosition.class)
        );