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Support aggregation operators $first and $last via expression method reference.

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This commit registers the first(...) and last(...) methods for transformation via SpEL.
Also update reference and java documentation and add issue reference to tests.

Original Pull Request: #3866
This commit is contained in:
Christoph Strobl
2022-01-24 09:22:10 +01:00
parent a2243536b2
commit bcbefa9264
5 changed files with 34 additions and 16 deletions
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src/main/asciidoc/reference/aggregation-framework.adoc
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@@ -94,7 +94,7 @@ At the time of this writing, we provide support for the following Aggregation Op
| `eq` (+++*+++ via `is`), `gt`, `gte`, `lt`, `lte`, `ne`
| Array Aggregation Operators
| `arrayElementAt`, `arrayToObject`, `concatArrays`, `filter`, `in`, `indexOfArray`, `isArray`, `range`, `reverseArray`, `reduce`, `size`, `slice`, `zip`
| `arrayElementAt`, `arrayToObject`, `concatArrays`, `filter`, `first`, `in`, `indexOfArray`, `isArray`, `last`, range`, `reverseArray`, `reduce`, `size`, `slice`, `zip`
| Literal Operators
| `literal`