Request partial joins by default (#14905)

* Request partial joins by default

This is a little sloppy, but we are trying to gain confidence in faster
joins in the upcoming RC.

Admins can still opt out by adding the following to their Synapse
config:

```yaml
experimental:
    faster_joins: false
```

We may revert this change before the release proper, depending on how
testing in the wild goes.

* Changelog

* Try to fix the backfill test failures

* Upgrade notes

* Postgres compat?
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David Robertson 2023-01-24 15:28:20 +00:00 committed by GitHub
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commit 4607be0b7b
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4 changed files with 49 additions and 7 deletions

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@ -90,6 +90,19 @@ process, for example:
# Upgrading to v1.76.0
## Faster joins are enabled by default
When joining a room for the first time, Synapse 1.76.0rc1 will request a partial join from the other server by default. Previously, server admins had to opt-in to this using an experimental config flag.
Server admins can opt out of this feature for the time being by setting
```yaml
experimental:
faster_joins: false
```
in their server config.
## Changes to the account data replication streams
Synapse has changed the format of the account data and devices replication