dde7d418a8
This adds the pattern into the error message returned when trying to
fetch fields. So this:
```
POST _search {
"fields": [ { "field": "*", "format": "date_time" } ]
}
```
Will return an error message like
```
error fetching [foo] which matches [*]: Field [foo] of type [keyword] doesn't support formats
```
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|---|---|---|
| .. | ||
| core-with-mapped | ||
| core-with-search | ||
| src/main/java/org/elasticsearch/xpack/runtimefields/test | ||
| with-security | ||
| build.gradle | ||