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dendrite/syncapi/storage/sqlite3/stream_id_table.go
Neil Alexander b70238f2d5
Basic sync filtering (#1721)
* Add some filtering (postgres only for now)

* Fix build error

* Try to use request filter

* Use default filter as a template when retrieving from the database

* Remove unused strut

* Update sytest-whitelist

* Add filtering to SelectEarlyEvents

* Fix Postgres selectEarlyEvents query

* Attempt filtering on SQLite

* Test limit, set field for limit/order in prepareWithFilters

* Remove debug logging, add comments

* Tweaks, debug logging

* Separate SQLite stream IDs

* Fix filtering in current state table

* Fix lock issues

* More tweaks

* Current state requires room ID

* Review comments
2021-01-19 18:00:42 +00:00

94 lines
3 KiB
Go

package sqlite3
import (
"context"
"database/sql"
"github.com/matrix-org/dendrite/internal/sqlutil"
"github.com/matrix-org/dendrite/syncapi/types"
)
const streamIDTableSchema = `
-- Global stream ID counter, used by other tables.
CREATE TABLE IF NOT EXISTS syncapi_stream_id (
stream_name TEXT NOT NULL PRIMARY KEY,
stream_id INT DEFAULT 0,
UNIQUE(stream_name)
);
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("global", 0)
ON CONFLICT DO NOTHING;
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("receipt", 0)
ON CONFLICT DO NOTHING;
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("accountdata", 0)
ON CONFLICT DO NOTHING;
INSERT INTO syncapi_stream_id (stream_name, stream_id) VALUES ("invite", 0)
ON CONFLICT DO NOTHING;
`
const increaseStreamIDStmt = "" +
"UPDATE syncapi_stream_id SET stream_id = stream_id + 1 WHERE stream_name = $1"
const selectStreamIDStmt = "" +
"SELECT stream_id FROM syncapi_stream_id WHERE stream_name = $1"
type streamIDStatements struct {
db *sql.DB
increaseStreamIDStmt *sql.Stmt
selectStreamIDStmt *sql.Stmt
}
func (s *streamIDStatements) prepare(db *sql.DB) (err error) {
s.db = db
_, err = db.Exec(streamIDTableSchema)
if err != nil {
return
}
if s.increaseStreamIDStmt, err = db.Prepare(increaseStreamIDStmt); err != nil {
return
}
if s.selectStreamIDStmt, err = db.Prepare(selectStreamIDStmt); err != nil {
return
}
return
}
func (s *streamIDStatements) nextPDUID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error) {
increaseStmt := sqlutil.TxStmt(txn, s.increaseStreamIDStmt)
selectStmt := sqlutil.TxStmt(txn, s.selectStreamIDStmt)
if _, err = increaseStmt.ExecContext(ctx, "global"); err != nil {
return
}
err = selectStmt.QueryRowContext(ctx, "global").Scan(&pos)
return
}
func (s *streamIDStatements) nextReceiptID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error) {
increaseStmt := sqlutil.TxStmt(txn, s.increaseStreamIDStmt)
selectStmt := sqlutil.TxStmt(txn, s.selectStreamIDStmt)
if _, err = increaseStmt.ExecContext(ctx, "receipt"); err != nil {
return
}
err = selectStmt.QueryRowContext(ctx, "receipt").Scan(&pos)
return
}
func (s *streamIDStatements) nextInviteID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error) {
increaseStmt := sqlutil.TxStmt(txn, s.increaseStreamIDStmt)
selectStmt := sqlutil.TxStmt(txn, s.selectStreamIDStmt)
if _, err = increaseStmt.ExecContext(ctx, "invite"); err != nil {
return
}
err = selectStmt.QueryRowContext(ctx, "invite").Scan(&pos)
return
}
func (s *streamIDStatements) nextAccountDataID(ctx context.Context, txn *sql.Tx) (pos types.StreamPosition, err error) {
increaseStmt := sqlutil.TxStmt(txn, s.increaseStreamIDStmt)
selectStmt := sqlutil.TxStmt(txn, s.selectStreamIDStmt)
if _, err = increaseStmt.ExecContext(ctx, "accountdata"); err != nil {
return
}
err = selectStmt.QueryRowContext(ctx, "accountdata").Scan(&pos)
return
}