[ARROW-12517] [Go] Expose App Metadata in Flight client

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: FlightRPC, Go
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/28281
• Assignee: Matthew Topol
• Reporter: Paul Whalen
• Created: 23/Apr/21 03:19
• Updated: 11/Jan/23 08:26
• Resolved: 28/Apr/21 15:53

Description

There isn't a convenient way to access the App Metadata from a Flight stream via the Go client, because the `ipc.Reader` returned from calling `flight.NewRecordReader()` only exposes the `array.Record` as you read data from it. This should expose a Flight-specific reader so the client can also access the metadata, perhaps.

Modified `record_batch_reader.go` workaround/idea here.

Issue Links

• links to: GitHub Pull Request #10142