[ARROW-1860] [C++] Add data structure to "stage" a sequence of IPC messages from in-memory data

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.11.0
• Component/s: C++
• Labels: flight pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17853
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 26/Nov/17 16:43
• Updated: 11/Jan/23 07:17
• Resolved: 21/Sep/18 18:20

Description

Currently, when you need to pre-allocate space for a record batch or a stream (schema + dictionaries + record batches), you must make multiple passes over the data structures of interest (and use e.g. MockOutputStream to compute the size of the output buffer). It would be useful to make a single pass to "prepare" the IPC payload for both sizing and writing to prevent having to make multiple passes

Issue Links

• links to: GitHub Pull Request #1500