```
show functions | keep description, *on | mv_expand description
```

```
{
    "error": {
        "root_cause": [
            {
                "type": "unresolved_exception",
                "reason": "Invalid call to dataType on an unresolved object ?description"
            }
        ],
        "type": "unresolved_exception",
        "reason": "Invalid call to dataType on an unresolved object ?description"
    },
    "status": 500
}
```

```
org.elasticsearch.xpack.ql.capabilities.UnresolvedException: Invalid call to dataType on an unresolved object ?description
        at org.elasticsearch.xpack.ql.expression.UnresolvedAttribute.dataType(UnresolvedAttribute.java:90)
        at org.elasticsearch.xpack.esql.analysis.Analyzer$ResolveRefs.resolveMvExpand(Analyzer.java:350)
        at org.elasticsearch.xpack.esql.analysis.Analyzer$ResolveRefs.doRule(Analyzer.java:334)
        at org.elasticsearch.xpack.ql.analyzer.AnalyzerRules$BaseAnalyzerRule.rule(AnalyzerRules.java:120)
        at org.elasticsearch.xpack.ql.analyzer.AnalyzerRules$AnalyzerRule.lambda$apply$0(AnalyzerRules.java:85)
```

It should throw a VerificationException and propagate the unresolved attribute message instead
x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/analysis/Analyzer.java
name = parentName == null ? name : parentName + "." + name;
                var fieldProperties = t.getProperties();
                
                var type = EsqlDataTypes.widenSmallNumericTypes(t.getDataType());
                
                
                if (type != t.getDataType()) {
                    t = new EsField(t.getName(), type, t.getProperties(), t.isAggregatable(), t.isAlias());
                }
                
                if (EsqlDataTypes.isPrimitive(type)) {
                    Attribute attribute;
                    if (t instanceof UnsupportedEsField uef) {
                        attribute = new UnsupportedAttribute(source, name, uef);
                    } else {
                        attribute = new FieldAttribute(source, null, name, t);
                    }
                    list.add(attribute);
                }
                
                if (type != NESTED && fieldProperties.isEmpty() == false) {
                    mappingAsAttributes(list, source, name, fieldProperties);
                }
            }
        }
    }
    private static class ResolveEnrich extends ParameterizedAnalyzerRule<Enrich, AnalyzerContext> {
        @Override
        protected LogicalPlan rule(Enrich plan, AnalyzerContext context) {
            if (plan.policyName().resolved() == false) {