IntervalQueryRulePrefix Source is wrong. Needs "prefix" instead of "query"

[martinrode]

Please use the following questions as a guideline to help me answer
your issue/question without further inquiry. Thank you.

Which version of Elastic are you using?

[x] elastic.v7 (for Elasticsearch 7.x)
[ ] elastic.v6 (for Elasticsearch 6.x)
[ ] elastic.v5 (for Elasticsearch 5.x)
[ ] elastic.v3 (for Elasticsearch 2.x)
[ ] elastic.v2 (for Elasticsearch 1.x)

Please describe the expected behavior

{
    "prefix": {
         "prefix": "horst"
    }
}

Please describe the actual behavior

{
    "prefix": {
         "query": "horst"
    }
}

Results in:

[{"root_cause":null,"type":"x_content_parse_exception","reason":"[1:551] [prefix] unknown field [query]"}]]

Any steps to reproduce the behavior?

elastic.NewIntervalQueryRulePrefix("horst").Source()

[olivere]

Thanks for reporting. Will be fixed in the next release.