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https://issues.apache.org/jira/browse/ARROW-11452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-11452:
-----------------------------------
Labels: pull-request-available (was: )
> [Rust] Parquet reader cannot read file where a struct column has the same
> name as struct member columns
> --------------------------------------------------------------------------------------------------------
>
> Key: ARROW-11452
> URL: https://issues.apache.org/jira/browse/ARROW-11452
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Max Burke
> Priority: Major
> Labels: pull-request-available
> Attachments: structs.parquet
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> For example, given the schema:
>
> count: struct<min: int64 not null, max: int64 not null, mean: int64 not null,
> count: uint64 not null, sum: int64 not null, variance: int64 not null> not
> null
> child 0, min: int64 not null
> child 1, max: int64 not null
> child 2, mean: int64 not null
> child 3, count: uint64 not null
> child 4, sum: int64 not null
> child 5, variance: int64 not null
> ul_observation_date: struct<min: timestamp[us] not null, max: timestamp[us]
> not null, mean: timestamp[us] not null, count: uint64 not null, sum:
> timestamp[us] not null, variance: timestamp[us] not null> not null
> child 0, min: timestamp[us] not null
> child 1, max: timestamp[us] not null
> child 2, mean: timestamp[us] not null
> child 3, count: uint64 not null
> child 4, sum: timestamp[us] not null
> child 5, variance: timestamp[us] not null
>
> The array reader performs dictionary lookups for the type of columns of types
> such as ul_observation_date, but when it looks up the field `count` it gets
> the definition not of the ul_observation_date.count field but of the `count`
> struct.
>
> Attached is a sample file that exhibits this behavior.
>
> [^structs.parquet]
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