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Document changes to schema version 61 - 64 (#10917) 

As pointed out by @richvdh, https://github.com/matrix-org/synapse/pull/10838#discussion_r715424244

Retroactively summarize `61` - `64`
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Eric Eastwood 2021-09-24 17:09:12 -05:00 committed by GitHub
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changelog.d/10917.misc Normal file
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Document and summarize changes in schema version `61` - `64`.

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synapse/storage/schema/__init__.py
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@ -27,11 +27,22 @@ for more information on how this works.
Changes in SCHEMA_VERSION = 61: Changes in SCHEMA_VERSION = 61:
- The `user_stats_historical` and `room_stats_historical` tables are not written and - The `user_stats_historical` and `room_stats_historical` tables are not written and
are not read (previously, they were written but not read). are not read (previously, they were written but not read).
- MSC2716: Add `insertion_events` and `insertion_event_edges` tables to keep track
of insertion events in order to navigate historical chunks of messages.
- MSC2716: Add `chunk_events` table to track how the chunk is labeled and
determines which insertion event it points to.
Changes in SCHEMA_VERSION = 62:
- MSC2716: Add `insertion_event_extremities` table that keeps track of which
insertion events need to be backfilled.
Changes in SCHEMA_VERSION = 63: Changes in SCHEMA_VERSION = 63:
- The `public_room_list_stream` table is not written nor read to - The `public_room_list_stream` table is not written nor read to
(previously, it was written and read to, but not for any significant purpose). (previously, it was written and read to, but not for any significant purpose).
https://github.com/matrix-org/synapse/pull/10565 https://github.com/matrix-org/synapse/pull/10565
Changes in SCHEMA_VERSION = 64:
- MSC2716: Rename related tables and columns from "chunks" to "batches".
""" """