[FLINK-24617] Support partition keys through metadata

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.15.0
• Component/s: Table SQL / Runtime
• Release Note: Now the formats implementing BulkWriterFormatFactory don't need to implement partition keys reading anymore, as it's managed internally by FileSystemTableSource
• Assignee: Francesco Guardiani
• Reporter: Francesco Guardiani
• Created: 22/Oct/21 07:00
• Updated: 09/Nov/21 15:11
• Resolved: 09/Nov/21 15:11

Description

Right now we have a lot of code around the various formats to support partition keys. From the FileSystemTableSource point of view, these can be handled reusing the metadata support provided by https://issues.apache.org/jira/browse/FLINK-24165. We should cleanup all that partition keys support code and just reuse what we have for metadata.