[
https://issues.apache.org/jira/browse/HIVE-8950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14647986#comment-14647986
]
Ryan Blue commented on HIVE-8950:
---------------------------------
[~gauravkumar37], the schema is read from the file once and then converted to
DDL. The file is no longer used after that, so schema evolution proceeds as it
normally would for any table.
> Add support in ParquetHiveSerde to create table schema from a parquet file
> --------------------------------------------------------------------------
>
> Key: HIVE-8950
> URL: https://issues.apache.org/jira/browse/HIVE-8950
> Project: Hive
> Issue Type: Improvement
> Reporter: Ashish K Singh
> Assignee: Gaurav Kumar
> Attachments: HIVE-8950.1.patch, HIVE-8950.2.patch, HIVE-8950.3.patch,
> HIVE-8950.4.patch, HIVE-8950.5.patch, HIVE-8950.6.patch, HIVE-8950.7.patch,
> HIVE-8950.8.patch, HIVE-8950.patch
>
>
> PARQUET-76 and PARQUET-47 ask for creating parquet backed tables without
> having to specify the column names and types. As, parquet files store schema
> in their footer, it is possible to generate hive schema from parquet file's
> metadata. This will improve usability of parquet backed tables.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
