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https://issues.apache.org/jira/browse/PARQUET-1647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17768198#comment-17768198
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ASF GitHub Bot commented on PARQUET-1647:
-----------------------------------------
zhangjiashen commented on PR #1142:
URL: https://github.com/apache/parquet-mr/pull/1142#issuecomment-1732203105
> CI failures are likely due to the fact that the addition of the logical
type to parquet-format is unmerged, so the specific [PR
branch](https://github.com/apache/parquet-format/pull/184) needs to be manually
installed for the build to pass. I'm not sure if there's a good solution yet,
as this implementation needs to be present for said parquet-format PR to be
voted on and merged.
Agree! we can merge [PR](https://github.com/apache/parquet-format/pull/184)
first after this diff is ready
> [Java] support for Arrow's float16
> ----------------------------------
>
> Key: PARQUET-1647
> URL: https://issues.apache.org/jira/browse/PARQUET-1647
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-format, parquet-thrift
> Reporter: The Alchemist
> Priority: Minor
>
> h2. DESCRIPTION
>
> I'm wondering if there's any interest in supporting Arrow's {{float16}} type
> in Parquet.
> There seem to be one or two {{float16}} / {{halffloat}} tickets here (e.g.,
> PARQUET-1403) but nothing that speaks to adding half-float support to Parquet
> in-general.
>
> h2. PLANS
> I'm able to spend some time on this, if someone points me in the right
> direction.
>
> # Add the {{HALFFLOAT}} or {{FLOAT16}} enum (any preferred naming
> convention?) to
> [https://github.com/apache/parquet-format/blob/master/src/main/thrift/parquet.thrift#L32]
> # Add {{HALFFLOAT}} to {{org.apache.parquet.schema.PrimitiveType}}
> # Add {{HALFFLOAT}} support to
> {{org.apache.parquet.arrow.schema.SchemaConverter}}
> # Add encoding for new type at {{org.apache.parquet.column.Encoding}}
> # ??
> If anyone has any interest in this, pointers, or comments, they would be
> greatly appreciated!
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