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Add missing fields property on top_hits aggregation #2522

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Apr 23, 2024
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7 changes: 6 additions & 1 deletion specification/_types/aggregations/metric.ts
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ import { Dictionary } from '@spec_utils/Dictionary'
import { UserDefinedValue } from '@spec_utils/UserDefinedValue'
import { Field, Fields } from '@_types/common'
import { double, integer, long } from '@_types/Numeric'
import { QueryContainer } from '@_types/query_dsl/abstractions'
import { FieldAndFormat, QueryContainer } from '@_types/query_dsl/abstractions'
import { Script, ScriptField } from '@_types/Scripting'
import { Aggregation } from './Aggregation'
import { Missing } from './AggregationContainer'
Expand Down Expand Up @@ -344,6 +344,11 @@ export class TopHitsAggregation extends MetricAggregationBase {
* @server_default false
*/
explain?: boolean
/**
* Array of wildcard (*) patterns. The request returns values for field names
* matching these patterns in the hits.fields property of the response.
*/
fields?: (FieldAndFormat | Field)[]
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should it be FieldAndFormat[] | Field[]?

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That's a good question. My assumption was that fields could take an array that consisted of either, or a combination of the two (e.g. ['field_one', { field: 'field_two', format: 'xxx' }]). The docs suggest that's the case as well.

I was looking at the FieldFetcher subphase in the Elasticsearch repo to verify in the source, but my Java is pretty rusty so it's hard to tell. What does it seem like to you?

/**
* Starting document offset.
* @server_default 0
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