[7.x] Map iteration support for ForEach processor (#64062) #76611
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danhermann
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:Data Management/Ingest Node
elasticmachine
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Team:Data Management
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Pinging @elastic/es-core-features (Team:Core/Features) |
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Adds support to the ForEach processor for iterating over map fields in addition to array fields. When iterating over maps, an additional ingest metadata field
_ingest._keyis populated with the value of the map entry's key. Both the map entry's key and value can be changed. Map entries can also be removed completely by setting the key to a null or empty string value.Resolves #55215
Backport of #64062