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https://issues.apache.org/jira/browse/HIVE-1955?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13530678#comment-13530678
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Navis commented on HIVE-1955:
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Is there any reason index value should be constant?
Support non-constant expressions for array indexes.
---
Key: HIVE-1955
URL: https://issues.apache.org/jira/browse/HIVE-1955
Project: Hive
Issue Type: Improvement
Reporter: Adam Kramer
FAILED: Error in semantic analysis: line 4:8 Non Constant Expressions for
Array Indexes not Supported dut
...just wrote my own UDF to do this, and it is trivial. We should support
this natively.
Let foo have these rows:
arr i
[1,2,3] 1
[3,4,5] 2
[5,4,3] 2
[0,0,1] 0
Then,
SELECT arr[i] FROM foo
should return:
2
5
3
1
Similarly, for the same table,
SELECT 3 IN arr FROM foo
should return:
true
true
true
false
...these use cases are needless limitations of functionality. We shouldn't
need UDFs to accomplish these goals.
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