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| author | Erik Johnston <erik@matrix.org> | 2018-06-01 11:31:16 +0100 |
|---|---|---|
| committer | Erik Johnston <erik@matrix.org> | 2018-06-01 11:31:16 +0100 |
| commit | 80a877e9d9382dbc5980db57c7b3d9a5de57c121 (patch) | |
| tree | cf34bb931edae8c30fa4670a1cca4b15d0d38c4d | |
| parent | Update docs for RoomStreamToken (diff) | |
| download | synapse-80a877e9d9382dbc5980db57c7b3d9a5de57c121.tar.xz | |
Comment on stream vs topological vs depth ordering in schema
| -rw-r--r-- | synapse/storage/schema/full_schemas/16/im.sql | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/synapse/storage/schema/full_schemas/16/im.sql b/synapse/storage/schema/full_schemas/16/im.sql index ba5346806e..4faf8562ad 100644 --- a/synapse/storage/schema/full_schemas/16/im.sql +++ b/synapse/storage/schema/full_schemas/16/im.sql @@ -14,7 +14,12 @@ */ CREATE TABLE IF NOT EXISTS events( + -- Defines an ordering used to stream new events to clients. Events + -- fetched via backfill have negative values. stream_ordering INTEGER PRIMARY KEY, + -- Defines a topological ordering of events within a chunk + -- (The concept of a chunk was added in later schemas, this used to + -- be set to the same value as the `depth` field in an event) topological_ordering BIGINT NOT NULL, event_id TEXT NOT NULL, type TEXT NOT NULL, |