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
assert fields.size() == 2 : "percentile() aggregation must have two arguments";
        out.writeExpression(fields.get(0));
        out.writeExpression(fields.get(1));
    }
    static StartsWith readStartsWith(PlanStreamInput in) throws IOException {
        return new StartsWith(Source.EMPTY, in.readExpression(), in.readExpression());
    }
    static void writeStartsWith(PlanStreamOutput out, StartsWith startsWith) throws IOException {
        List<Expression> fields = startsWith.children();
        assert fields.size() == 2;
        out.writeExpression(fields.get(0));
        out.writeExpression(fields.get(1));
    }
    static Substring readSubstring(PlanStreamInput in) throws IOException {
        return new Substring(Source.EMPTY, in.readExpression(), in.readExpression(), in.readOptionalNamed(Expression.class));
    }
    static void writeSubstring(PlanStreamOutput out, Substring substring) throws IOException {
        List<Expression> fields = substring.children();
        assert fields.size() == 2 || fields.size() == 3;
        out.writeExpression(fields.get(0));
        out.writeExpression(fields.get(1));
        out.writeOptionalWriteable(fields.size() == 3 ? o -> out.writeExpression(fields.get(2)) : null);
    }
    static Left readLeft(PlanStreamInput in) throws IOException {
        return new Left(Source.EMPTY, in.readExpression(), in.readExpression());
    }
    static void writeLeft(PlanStreamOutput out, Left left) throws IOException {
        List<Expression> fields = left.children();
        assert fields.size() == 2;
        out.writeExpression(fields.get(0));