File

mod_storage_appendmap/README.markdown @ 3652:d0c2f001735f

mod_map: Include last body text Body, timestamp and message count allows showing modern conversation list UI without a full archive sync.
author Kim Alvefur <zash@zash.se>
date Fri, 23 Aug 2019 01:18:24 +0200
parent 2818:88474dd1af48
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---
labels:
- 'Stage-Alpha'
- 'Type-Storage'
summary: Experimental map store optimized for small incremental changes
...

This is an experimental storage driver where changed data is appended.
Data is simply written as `key = value` pairs to the end of the file.
This allows changes to individual keys to be written without needing to
write out the entire object again, but reads would grow gradually larger
as it still needs to read old overwritten keys. This may be suitable for
e.g. rosters where individual contacts are changed at a time. In theory,
this could also allow rolling back changes.

Requires 0.10