[DOCS] Adds painless transform examples #53274
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szabosteve
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szabosteve
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Related to #53274 This PR adds anchors to sections in https://www.elastic.co/guide/en/elasticsearch/reference/master/search-aggregations-metrics-scripted-metric-aggregation.html so that they can be linked from other pages.
Co-Authored-By: Lisa Cawley <[email protected]>
Co-Authored-By: Lisa Cawley <[email protected]>
| `last_doc` in the `state` object. | ||
| <2> The `map_script` defines `current_date` based on the timestamp of the | ||
| document, then compares `current_date` with `state.timestamp_latest`, finally | ||
| returns `state.last_doc` from the shard. |
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For correctness I think we should explain new HashMap(...):
"By using new HashMap(...) we copy the source document, this is important whenever you want to pass the full source object from one phase to the next."
But: let me clarify this with the painless developers, this might be a bug in painless.
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follow up issue: #53679
(will be picked up on thursday, so I expect some answer at the end of this week)
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@hendrikmuhs Thank you for this!
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For the record: we decided to go forward with the workaround and change the documentation once #53679 got fixed.
Co-authored-by: Lisa Cawley <[email protected]>
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Backport commits: |
This PR adds a new sub-page to the Transforms documentation called Painless transform examples with short examples on how to use Painless in Transforms.
Preview: http://elasticsearch_53274.docs-preview.app.elstc.co/guide/en/elasticsearch/reference/master/transform-painless-examples.html