[SPARK-28097] Map ByteType to SMALLINT when using JDBC with PostgreSQL

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Input/Output
• Assignee: Seth Fitzsimmons
• Reporter: Seth Fitzsimmons
• Created: 18/Jun/19 20:08
• Updated: 17/Jul/19 22:14
• Resolved: 17/Jul/19 22:11

Description

PostgreSQL doesn't have TINYINT, which would map directly, but {{SMALLINT}}s are sufficient for uni-directional translation (i.e. when writing).

This is equivalent to a user selecting 'byteColumn.cast(ShortType).

Issue Links

• links to: [Github] Pull Request #24845 (mojodna)
• links to: GitHub Pull Request #24845