[HIVE-25569] Enable table definition over a single file

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-1
• Labels: pull-request-available
• Assignee: Zoltan Haindrich
• Reporter: Zoltan Haindrich
• Created: 28/Sep/21 14:33
• Updated: 17/Nov/22 18:03
• Resolved: 15/Nov/21 15:26

Description

Suppose there is a directory where multiple files are present - and by a 3rd party database system this is perfectly normal - because its treating a single file as the contents of the table.

Tables defined in the metastore follow a different principle - tables are considered to be under a directory - and all files under that directory are the contents of that directory.

To enable seamless migration/evaluation of Hive and other databases using HMS as a metadatabackend the ability to define a table over a single file would be usefull.

Issue Links

• is related to: HIVE-26757 Add sfs+ofs support
• is related to: IMPALA-10934 Enable table definition over a single file
• links to: GitHub Pull Request #2680