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Ensure all create events have a snapshot NID of 0 (#1961)

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Fixes #1924 for postgres users, though the underlying cause of why
they aren't 0 in the first place is unresolved.
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kegsay 2021-08-04 17:48:23 +01:00 committed by GitHub
parent 7a9a2547b3
commit 4cc8b28b7f
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1 changed files with 12 additions and 0 deletions
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12
roomserver/storage/postgres/deltas/2021041615092700_state_blocks_refactor.go
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@ -99,6 +99,18 @@ func UpStateBlocksRefactor(tx *sql.Tx) error {
return fmt.Errorf("tx.Exec (create snapshots table): %w", err)
}
logrus.Warn("New tables created...")
// some m.room.create events have a state snapshot but no state blocks at all which makes
// sense as there is no state before creation. The correct form should be to give the event
// in question a state snapshot NID of 0 to indicate 'no snapshot'.
// If we don't do this, we'll fail the assertions later on which try to ensure we didn't forget
// any snapshots.
_, err = tx.Exec(
`UPDATE roomserver_events SET state_snapshot_nid = 0 WHERE event_type_nid = $1 AND event_state_key_nid = $2`,
types.MRoomCreateNID, types.EmptyStateKeyNID,
)
if err != nil {
return fmt.Errorf("resetting create events snapshots to 0 errored: %s", err)
}
batchsize := 100
for batchoffset := 0; batchoffset < snapshotcount; batchoffset += batchsize {