Airblader commented on a change in pull request #17549:
URL: https://github.com/apache/flink/pull/17549#discussion_r735824538
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File path: docs/data/sql_functions.yml
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@@ -766,6 +766,27 @@ json:
)
)
```
+ - sql: JSON_OBJECTAGG([KEY] key VALUE value [ { NULL | ABSENT } ON NULL ])
+ table: jsonObjectAgg(JsonOnNull, keyExpression, valueExpression)
+ description: |
+ Builds a JSON object string by aggregating over key-value expressions.
Review comment:
> I find the name not very intuitive for what it is doing. It is
actually a "union" of key-value pairs but uses the term "agg".
I think of it as a function that aggregates key-values into a single JSON
object, which makes sense to me. :-)
> can we add an example with JSON?
I've changed the example entirely to something that I think makes sense
without having to "set it up".
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