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https://issues.apache.org/jira/browse/IMPALA-13272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Becker resolved IMPALA-13272.
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Resolution: Fixed
> Analytic function of collections can lead to crash
> --------------------------------------------------
>
> Key: IMPALA-13272
> URL: https://issues.apache.org/jira/browse/IMPALA-13272
> Project: IMPALA
> Issue Type: Bug
> Affects Versions: Impala 4.4.0
> Reporter: Csaba Ringhofer
> Assignee: Daniel Becker
> Priority: Critical
>
> Using Impala's test data the following query leads to DCHECK in debug builds
> and may cause more subtle issues in RELEASE builds:
> {code}
> select
> row_no
> from (
> select
> arr.small,
> row_number() over (
> order by arr.inner_struct1.str) as row_no
> from functional_parquet.collection_struct_mix t,
> t.arr_contains_nested_struct arr
> ) res
> {code}
> The following DCHECK is hit:
> {code}
> tuple.h:296 Check failed: offset != -1
> {code}
> The problem seems to be with arr.small, which is referenced in the inline
> view, but not used in the outer query - removing it from the inline view or
> adding it to the outer select leads to avoiding the bug. The problem seems
> related to materialization - offset==-1 means that the slot is not
> materialized, but the Parquet scanner still tries to materialize it.
> It is not clear yet which commit introduced the bug or whether this is a bug
> in the planner or the backend.
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