Description
Ref: https://prestodb.io/docs/current/functions/array.html and https://prestodb.io/docs/current/functions/map.html
- element_at(array<E>, index) → E
Returns element of array at given index. If index > 0, this function provides the same functionality as the SQL-standard subscript operator ([]). If index < 0, element_at accesses elements from the last to the first.
- element_at(map<K, V>, key) → V
Returns value for given key, or NULL if the key is not contained in the map.
Attachments
Issue Links
- relates to
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SPARK-24348 scala.MatchError in the "element_at" expression
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- Resolved
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- links to
