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Fulltext implementation using Bleve (#2675)

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Based on #2480

This actually indexes events based on their event type. They are removed
from the index if we receive a `m.room.redaction` event on the
`OutputRoomEvent` stream.
An admin endpoint is added to reindex all existing events.


Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
This commit is contained in:
Till 2022-09-27 18:06:49 +02:00 • committed by GitHub
parent 6c67552bf9
commit 87be32ca26
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22 changed files with 680 additions and 53 deletions
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28
syncapi/storage/postgres/output_room_events_table.go
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@ -166,6 +166,8 @@ const selectContextAfterEventSQL = "" +
" AND ( $7::text[] IS NULL OR NOT(type LIKE ANY($7)) )" +
" ORDER BY id ASC LIMIT $3"
const selectSearchSQL = "SELECT id, event_id, headered_event_json FROM syncapi_output_room_events WHERE id > $1 AND type = ANY($2) ORDER BY id ASC LIMIT $3"
type outputRoomEventsStatements struct {
insertEventStmt *sql.Stmt
selectEventsStmt *sql.Stmt
@ -180,6 +182,7 @@ type outputRoomEventsStatements struct {
selectContextEventStmt *sql.Stmt
selectContextBeforeEventStmt *sql.Stmt
selectContextAfterEventStmt *sql.Stmt
selectSearchStmt *sql.Stmt
}
func NewPostgresEventsTable(db *sql.DB) (tables.Events, error) {
@ -215,6 +218,7 @@ func NewPostgresEventsTable(db *sql.DB) (tables.Events, error) {
{&s.selectContextEventStmt, selectContextEventSQL},
{&s.selectContextBeforeEventStmt, selectContextBeforeEventSQL},
{&s.selectContextAfterEventStmt, selectContextAfterEventSQL},
{&s.selectSearchStmt, selectSearchSQL},
}.Prepare(db)
}
@ -632,3 +636,27 @@ func rowsToStreamEvents(rows *sql.Rows) ([]types.StreamEvent, error) {
}
return result, rows.Err()
}
func (s *outputRoomEventsStatements) ReIndex(ctx context.Context, txn *sql.Tx, limit, afterID int64, types []string) (map[int64]gomatrixserverlib.HeaderedEvent, error) {
rows, err := sqlutil.TxStmt(txn, s.selectSearchStmt).QueryContext(ctx, afterID, pq.StringArray(types), limit)
if err != nil {
return nil, err
}
defer internal.CloseAndLogIfError(ctx, rows, "rows.close() failed")
var eventID string
var id int64
result := make(map[int64]gomatrixserverlib.HeaderedEvent)
for rows.Next() {
var ev gomatrixserverlib.HeaderedEvent
var eventBytes []byte
if err = rows.Scan(&id, &eventID, &eventBytes); err != nil {
return nil, err
}
if err = ev.UnmarshalJSONWithEventID(eventBytes, eventID); err != nil {
return nil, err
}
result[id] = ev
}
return result, rows.Err()
}