[last] (SQL/JSON path array accessor)

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The JSON path accessor [last] picks the last element of a JSON array.

SELECT JSON_VALUE('["A", "B", "C"]', '$[last]')
  FROM …

The JSON path expression [last] in this example returns the value "C" as it is the last element in the JSON array.

Normative References

The SQL/JSON path language first appeared in ISO/IEC 9075-2:2016 as part of optional feature T821, “Basic SQL/JSON query operators”.

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