Dawid Wysakowicz

Results 4 issues of Dawid Wysakowicz

Took over https://github.com/apache/flink/pull/22922

## What is the purpose of the change Took over https://github.com/apache/flink/pull/23118 to cover the change with narrower scoped tests. ## Verifying this change Added tests in HashcodeITCase ## Does this...

Add support for `RETURNING` clause of `JSON_QUERY`.

## What is the purpose of the change This PR adds support for `RETURNING` clause in `JSON_QUERY` function. ## Verifying this change Added tests in `JsonFunctionsITCase` ## Does this pull...

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