[ARROW-10787] [C++][Flight] DoExchange doesn't support dictionary replacement

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: C++, FlightRPC
• External issue URL: https://github.com/apache/arrow/issues/26727
• Assignee: Unassigned
• Reporter: Antoine Pitrou
• Created: 02/Dec/20 08:31
• Updated: 11/Jan/23 08:15

Description

Looking at the server DoExchangeMessageWriter implementation, it seems to assume that the dictionary values for a given dictionary-encoded field will never change accross record batches.

Issue Links

• is related to: ARROW-6883 [C++] Support sending delta DictionaryBatch or replacement DictionaryBatch in IPC stream writer class
• is related to: ARROW-15706 [C++][FlightRPC] Implement a UCX transport