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https://issues.apache.org/jira/browse/HIVE-26395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17566895#comment-17566895
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John Sherman commented on HIVE-26395:
-------------------------------------
Here is an older JIRA - https://issues.apache.org/jira/browse/HIVE-10593 with
discussion.
There is some conversation about using magic bytes to determine file format -
we did not go with this approach.
In the future it might be nice to have a feature that attempts to derive the
schema and filetype given a directory.
> Support CREATE TABLE LIKE FILE for PARQUET
> ------------------------------------------
>
> Key: HIVE-26395
> URL: https://issues.apache.org/jira/browse/HIVE-26395
> Project: Hive
> Issue Type: New Feature
> Components: HiveServer2
> Reporter: John Sherman
> Assignee: John Sherman
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The intent is to allow a user to create a table and derive the schema from a
> user provided parquet file. A secondary goal is to generalize this support so
> other SerDes/formats could implement the feature easily.
> The proposed syntax is:
> CREATE TABLE <tableName> LIKE FILE <fileFormat> 'path to file';
> Example being:
> {code:java}
> CREATE TABLE like_test_all_types LIKE FILE PARQUET
> '${system:test.tmp.dir}/test_all_types/000000_0';{code}
> with partitioning
> {code}
> CREATE TABLE like_test_partitioning LIKE FILE PARQUET
> '${system:test.tmp.dir}/test_all_types/000000_0' PARTITIONED BY (year STRING,
> month STRING);
> {code}
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