[GitHub] [druid] fstolba opened a new issue #9346: string_to_array ordering

[GitBox <gi...@apache.org>]

fstolba opened a new issue #9346: string_to_array ordering
URL: https://github.com/apache/druid/issues/9346
 
 
   ### Affected Version
   0.17
   
   ### Description
   When using the function `string_to_array` on ingest the ordering of the resulting arrays seems random. I would expect the array elements to keep the order they had in the constituting string. Is this to be expected / by design?
   
   ### Example:
   ```
   Function Call                                         Result
   string_to_array("A_B_C", "_")                         ["C", "B", "A"]
   string_to_array("D_E_F", "_")                         ["E", "D", "F"]
   string_to_array("A_B", "_")                           ["A", "B"]
   string_to_array("A_B_B_C", "_")                       ["A", "C", "B", "B"]
   ```
   
   ### Desired result:
   ```
   Function Call                                         Result
   string_to_array("A_B_C", "_")                         ["A", "B", "C"]
   string_to_array("D_E_F", "_")                         ["D", "E", "F"]
   string_to_array("A_B", "_")                           ["A", "B"]
   string_to_array("A_B_B_C", "_")                       ["A", "B", "B", "C"]
   ```

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