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https://issues.apache.org/jira/browse/PARQUET-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16468593#comment-16468593
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ASF GitHub Bot commented on PARQUET-1253:
-----------------------------------------
nandorKollar commented on issue #463: PARQUET-1253: Support for new logical
type representation
URL: https://github.com/apache/parquet-mr/pull/463#issuecomment-387680018
@gszadovszky it looks like the version of maven-shade-plugin and
enforcer-rule dependency in maven-enforcer-plugin Maven plugins used in Parquet
don't like Java 8 lambda expressions, that's why Travis build failed. Since
Parquet is already upgraded to Java 8, I think we should upgrade these plugins.
I'll create a separate Jira for this issue.
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> Support for new logical type representation
> -------------------------------------------
>
> Key: PARQUET-1253
> URL: https://issues.apache.org/jira/browse/PARQUET-1253
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Reporter: Nandor Kollar
> Assignee: Nandor Kollar
> Priority: Major
>
> Latest parquet-format
> [introduced|https://github.com/apache/parquet-format/commit/863875e0be3237c6aa4ed71733d54c91a51deabe#diff-0f9d1b5347959e15259da7ba8f4b6252]
> a new representation for logical types. As of now this is not yet supported
> in parquet-mr, thus there's no way to use parametrized UTC normalized
> timestamp data types. When reading and writing Parquet files, besides
> 'converted_type' parquet-mr should use the new 'logicalType' field in
> SchemaElement to tell the current logical type annotation. To maintain
> backward compatibility, the semantic of converted_type shouldn't change.
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