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https://issues.apache.org/jira/browse/ARROW-12118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jorge Leitão updated ARROW-12118:
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Component/s: Parquet
> [C++] [Parquet] Primitive types have defined num_children
> ---------------------------------------------------------
>
> Key: ARROW-12118
> URL: https://issues.apache.org/jira/browse/ARROW-12118
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Parquet
> Reporter: Jorge Leitão
> Priority: Minor
>
> The spec states that `num_children` [should not be defined in primitive
> types.|https://github.com/apache/parquet-format/blob/7f06e838cbd1b7dbd722ff2580b9c2525e37fc46/src/main/thrift/parquet.thrift#L373]
> However, we are sometimes writing 0 children on it.
>
> Found while going through the rust code:
> [https://github.com/apache/arrow/blob/5be69789eeac0f2c357cfcd0d329c518848adebc/rust/parquet/src/schema/types.rs#L2030]
>
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