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Don't re-request state events that are already in the timeline (#1739)

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* Don't request state events if we already have the timeline events (Postgres only)

* Rename variable

* nocyclo

* Add SQLite

* Tweaks

* Revert query change

* Don't dedupe if asking for full state

* Update query
This commit is contained in:
Neil Alexander 2021-02-04 12:20:37 +00:00 • committed by GitHub
parent 6099379ea4
commit 6e44450cc9
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 45 additions and 23 deletions
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3
syncapi/storage/sqlite3/current_room_state_table.go
View file

@ -178,6 +178,7 @@ func (s *currentRoomStateStatements) SelectRoomIDsWithMembership(
func (s *currentRoomStateStatements) SelectCurrentState(
ctx context.Context, txn *sql.Tx, roomID string,
stateFilter *gomatrixserverlib.StateFilter,
excludeEventIDs []string,
) ([]*gomatrixserverlib.HeaderedEvent, error) {
stmt, params, err := prepareWithFilters(
s.db, txn, selectCurrentStateSQL,
@ -186,7 +187,7 @@ func (s *currentRoomStateStatements) SelectCurrentState(
},
stateFilter.Senders, stateFilter.NotSenders,
stateFilter.Types, stateFilter.NotTypes,
stateFilter.Limit, FilterOrderNone,
excludeEventIDs, stateFilter.Limit, FilterOrderNone,
)
if err != nil {
return nil, fmt.Errorf("s.prepareWithFilters: %w", err)

9
syncapi/storage/sqlite3/filtering.go
View file

@ -23,9 +23,10 @@ const (
// fields might come from either a StateFilter or an EventFilter,
// and it's easier just to have the caller extract the relevant
// parts.
// nolint:gocyclo
func prepareWithFilters(
db *sql.DB, txn *sql.Tx, query string, params []interface{},
senders, notsenders, types, nottypes []string,
senders, notsenders, types, nottypes []string, excludeEventIDs []string,
limit int, order FilterOrder,
) (*sql.Stmt, []interface{}, error) {
offset := len(params)
@ -53,6 +54,12 @@ func prepareWithFilters(
params, offset = append(params, v), offset+1
}
}
if count := len(excludeEventIDs); count > 0 {
query += " AND event_id NOT IN " + sqlutil.QueryVariadicOffset(count, offset)
for _, v := range excludeEventIDs {
params, offset = append(params, v), offset+1
}
}
switch order {
case FilterOrderAsc:
query += " ORDER BY id ASC"

6
syncapi/storage/sqlite3/output_room_events_table.go
View file

@ -150,7 +150,7 @@ func (s *outputRoomEventsStatements) SelectStateInRange(
},
stateFilter.Senders, stateFilter.NotSenders,
stateFilter.Types, stateFilter.NotTypes,
stateFilter.Limit, FilterOrderAsc,
nil, stateFilter.Limit, FilterOrderAsc,
)
if err != nil {
return nil, nil, fmt.Errorf("s.prepareWithFilters: %w", err)
@ -326,7 +326,7 @@ func (s *outputRoomEventsStatements) SelectRecentEvents(
},
eventFilter.Senders, eventFilter.NotSenders,
eventFilter.Types, eventFilter.NotTypes,
eventFilter.Limit+1, FilterOrderDesc,
nil, eventFilter.Limit+1, FilterOrderDesc,
)
if err != nil {
return nil, false, fmt.Errorf("s.prepareWithFilters: %w", err)
@ -374,7 +374,7 @@ func (s *outputRoomEventsStatements) SelectEarlyEvents(
},
eventFilter.Senders, eventFilter.NotSenders,
eventFilter.Types, eventFilter.NotTypes,
eventFilter.Limit, FilterOrderAsc,
nil, eventFilter.Limit, FilterOrderAsc,
)
if err != nil {
return nil, fmt.Errorf("s.prepareWithFilters: %w", err)