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Fix prev_batch tokens (#999)

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Kegsay 2020-05-01 12:41:38 +01:00 • committed by GitHub
parent b28674435e
commit 17e046f18f
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7 changed files with 83 additions and 75 deletions
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29
syncapi/storage/sqlite3/output_room_events_table.go
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@ -74,9 +74,6 @@ const selectEarlyEventsSQL = "" +
const selectMaxEventIDSQL = "" +
"SELECT MAX(id) FROM syncapi_output_room_events"
const selectStreamPositionForEventIDSQL = "" +
"SELECT id FROM syncapi_output_room_events WHERE event_id = $1"
// In order for us to apply the state updates correctly, rows need to be ordered in the order they were received (id).
/*
$1 = oldPos,
@ -102,15 +99,14 @@ const selectStateInRangeSQL = "" +
" LIMIT $8" // limit
type outputRoomEventsStatements struct {
streamIDStatements *streamIDStatements
insertEventStmt *sql.Stmt
selectEventsStmt *sql.Stmt
selectMaxEventIDStmt *sql.Stmt
selectRecentEventsStmt *sql.Stmt
selectRecentEventsForSyncStmt *sql.Stmt
selectEarlyEventsStmt *sql.Stmt
selectStateInRangeStmt *sql.Stmt
selectStreamPositionForEventIDStmt *sql.Stmt
streamIDStatements *streamIDStatements
insertEventStmt *sql.Stmt
selectEventsStmt *sql.Stmt
selectMaxEventIDStmt *sql.Stmt
selectRecentEventsStmt *sql.Stmt
selectRecentEventsForSyncStmt *sql.Stmt
selectEarlyEventsStmt *sql.Stmt
selectStateInRangeStmt *sql.Stmt
}
func (s *outputRoomEventsStatements) prepare(db *sql.DB, streamID *streamIDStatements) (err error) {
@ -140,18 +136,9 @@ func (s *outputRoomEventsStatements) prepare(db *sql.DB, streamID *streamIDState
if s.selectStateInRangeStmt, err = db.Prepare(selectStateInRangeSQL); err != nil {
return
}
if s.selectStreamPositionForEventIDStmt, err = db.Prepare(selectStreamPositionForEventIDSQL); err != nil {
return
}
return
}
func (s *outputRoomEventsStatements) selectStreamPositionForEventID(ctx context.Context, eventID string) (types.StreamPosition, error) {
var id int64
err := s.selectStreamPositionForEventIDStmt.QueryRowContext(ctx, eventID).Scan(&id)
return types.StreamPosition(id), err
}
// selectStateInRange returns the state events between the two given PDU stream positions, exclusive of oldPos, inclusive of newPos.
// Results are bucketed based on the room ID. If the same state is overwritten multiple times between the
// two positions, only the most recent state is returned.