[pkg/ottl] Add merge_all_maps

[strawgate]

Component(s)

No response

Is your feature request related to a problem? Please describe.

Right now merge_maps requires a source map and a target map.

There does not seem to be a good way to merge an array of maps.

Describe the solution you'd like

merge_all_maps(source, target, method)

where source is an array of maps and target is a map

Method (or whatever it's called on merge_map) would decide whether it's an insert, upset, etc

Describe alternatives you've considered

No response

Additional context

No response

[github-actions]

Pinging code owners:

• pkg/ottl: @TylerHelmuth @kentquirk @bogdandrutu @evan-bradley

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[evan-bradley]

@TylerHelmuth How would you feel about changing the source parameter in merge_maps to a list instead of a single value? This would be a huge breaking change, but would let us avoid having two editors. Maybe we could find a way to have a transition period.

[TylerHelmuth]

We could add a third, optional parameter like additionalMaps that is a list.

Technically the solution to this issue right now is to have multiple merge_maps statements in a row.

[strawgate]

I think the issue is that with things like Windows event data there are an arbitrary number of maps present in the array

[TylerHelmuth]

@strawgate interesting, can you go into more details about that use case?

[strawgate]

I detailed it here: #32952

Happy to include more info if you have specific questions

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• pkg/ottl: @TylerHelmuth @kentquirk @bogdandrutu @evan-bradley

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[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

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[strawgate]

This use case still exists

[strawgate]

I would be willing to make an attempt at contributing this if it seems reasonable?

[github-actions]

This issue has been inactive for 60 days. It will be closed in 60 days if there is no activity. To ping code owners by adding a component label, see Adding Labels via Comments, or if you are unsure of which component this issue relates to, please ping @open-telemetry/collector-contrib-triagers. If this issue is still relevant, please ping the code owners or leave a comment explaining why it is still relevant. Otherwise, please close it.

Pinging code owners:

• pkg/ottl: @TylerHelmuth @kentquirk @bogdandrutu @evan-bradley

See Adding Labels via Comments if you do not have permissions to add labels yourself.