[
https://issues.apache.org/jira/browse/HIVE-8205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14204434#comment-14204434
]
Lefty Leverenz commented on HIVE-8205:
--------------------------------------
Does this need documentation? The Parquet wikidoc has examples with strings in
map, array, and struct for Hive 0.10 - 0.12 as well as Hive 0.13+.
* [Parquet -- HiveQL Syntax -- Hive 0.10 - 0.12 |
https://cwiki.apache.org/confluence/display/Hive/Parquet#Parquet-Hive0.10-0.12]
* [Parquet -- HiveQL Syntax -- Hive 0.13 and later |
https://cwiki.apache.org/confluence/display/Hive/Parquet#Parquet-Hive0.13andlater]
* [Parquet -- Limitations |
https://cwiki.apache.org/confluence/display/Hive/Parquet#Parquet-Limitations]
> Using strings in group type fails in ParquetSerDe
> -------------------------------------------------
>
> Key: HIVE-8205
> URL: https://issues.apache.org/jira/browse/HIVE-8205
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Reporter: Mohit Sabharwal
> Assignee: Mohit Sabharwal
> Labels: parquet
> Fix For: 0.14.0
>
> Attachments: HIVE-8205.1.patch, HIVE-8205.1.patch, HIVE-8205.patch
>
>
> In HIVE-7735, schema info was plumbed to ETypeConverter to disambiguate
> between hive Char, Varchar and String types, which are all represented as
> PrimitiveType "binary" and OriginalType "utf8" in parquet.
> However, this does not work for parquet nested types (that map to hive Array,
> Map, etc.) containing these values, because schema lookup for nested values
> was not implemented. It's also non-trivial to do that in the current parquet
> serde implementation. Instead of plumbing in the schema, we should convert
> these types to the same Text writeable and let the object inspectors handle
> the final conversion.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
