Max Burke created ARROW-11452: --------------------------------- Summary: [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 Attachments: structs.parquet
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] -- This message was sent by Atlassian Jira (v8.3.4#803005)