[BEAM-13803] Add native iterable side input support to the Go SDK

• Type: Improvement
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.37.0
• Component/s: sdk-go
• Assignee: Jack McCluskey
• Reporter: Jack McCluskey
• Created: 02/Feb/22 15:47
• Updated: 09/Feb/22 17:21
• Resolved: 09/Feb/22 17:21

Description

The current Go SDK side input implementation handles all side inputs as map side inputs, applying a fixed key to anything that is unkeyed and arranging things into the correct form after the fact. This should be changed to avoid adding an extra fixed key node and support iterable side inputs natively.

Issue Links

• links to: GitHub Pull Request #16775