[SPARK-20494] Implement UDF array_unique in Spark with codegen #17778
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Can one of the admins verify this patch? |
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Hi @janewangfb, it looks we need a JIRA, better PR title and PR description. Please check out http://spark.apache.org/contributing.html. |
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Why does this need to be added? If it isn't a standard function somewhere it probably doesn't need to be in Spark |
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@srowen We have array_contains UDF. I think it is nice to have one that removes all the duplicated elements. |
janewangfb
changed the title
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@janewangfb that's because |
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We should close this |
zifeif2
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Nov 22, 2025
## What changes were proposed in this pull request? This PR proposes to close PRs ... - inactive to the review comments more than a month - WIP and inactive more than a month - with Jenkins build failure but inactive more than a month - suggested to be closed and no comment against that - obviously looking inappropriate (e.g., Branch 0.5) To make sure, I left a comment for each PR about a week ago and I could not have a response back from the author in these PRs below: Closes apache#11129 Closes apache#12085 Closes apache#12162 Closes apache#12419 Closes apache#12420 Closes apache#12491 Closes apache#13762 Closes apache#13837 Closes apache#13851 Closes apache#13881 Closes apache#13891 Closes apache#13959 Closes apache#14091 Closes apache#14481 Closes apache#14547 Closes apache#14557 Closes apache#14686 Closes apache#15594 Closes apache#15652 Closes apache#15850 Closes apache#15914 Closes apache#15918 Closes apache#16285 Closes apache#16389 Closes apache#16652 Closes apache#16743 Closes apache#16893 Closes apache#16975 Closes apache#17001 Closes apache#17088 Closes apache#17119 Closes apache#17272 Closes apache#17971 Added: Closes apache#17778 Closes apache#17303 Closes apache#17872 ## How was this patch tested? N/A Author: hyukjinkwon <[email protected]> Closes apache#18017 from HyukjinKwon/close-inactive-prs.
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What changes were proposed in this pull request?
Add UDF array_unique which return a new array with all the duplicated elements in the original array removed.
How was this patch tested?
Added various unittests in collectionExpressionsSuite.scala and also in spark-shell, created tables with columns of array type and inserted values with duplicated array elements, ran queries with UDF and verified the results.