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https://issues.apache.org/jira/browse/IMPALA-12781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17813618#comment-17813618
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Daniel Becker commented on IMPALA-12781:
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It can also be reproduced within Impala with an existing test table:
{code:java}
select id, arr_contains_nested_struct from collection_struct_mix order by id
limit 1;{code}
> ARRAY<STRUCT<s: STRING> crashes in top-n
> ----------------------------------------
>
> Key: IMPALA-12781
> URL: https://issues.apache.org/jira/browse/IMPALA-12781
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
> Reporter: Daniel Becker
> Assignee: Daniel Becker
> Priority: Major
>
> In ASAN builds if we sort an array containing a struct of a string with
> limit, Impala crashes. This is how to reproduce it:
> In Hive:
> {code:java}
> create table su (arr ARRAY<STRUCT<s: STRING>>) stored as parquet;
> insert into su values (array(named_struct("s", "A")));
> {code}
> In Impala:
> {code:java}
> select 1, arr from su order by 1 limit 1{code}
> The ASAN error message indicates a heap-use-after-free.
> Note that this only happens if codegen is enabled.
> h4.
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