mirror of
https://github.com/matrix-org/dendrite.git
synced 2024-11-23 14:51:56 -06:00
67 lines
2.1 KiB
Go
67 lines
2.1 KiB
Go
|
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
// you may not use this file except in compliance with the License.
|
||
|
|
// You may obtain a copy of the License at
|
||
|
|
//
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
//
|
||
|
|
// Unless required by applicable law or agreed to in writing, software
|
||
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
// See the License for the specific language governing permissions and
|
||
|
|
// limitations under the License.
|
||
|
|
|
||
|
|
package deltas
|
||
|
|
|
||
|
|
import (
|
||
|
|
"database/sql"
|
||
|
|
"fmt"
|
||
|
|
|
||
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
||
|
|
"github.com/pressly/goose"
|
||
|
|
)
|
||
|
|
|
||
|
|
func LoadFromGoose() {
|
||
|
|
goose.AddMigration(UpFixSequences, DownFixSequences)
|
||
|
|
}
|
||
|
|
|
||
|
|
func LoadFixSequences(m *sqlutil.Migrations) {
|
||
|
|
m.AddMigration(UpFixSequences, DownFixSequences)
|
||
|
|
}
|
||
|
|
|
||
|
|
func UpFixSequences(tx *sql.Tx) error {
|
||
|
|
_, err := tx.Exec(`
|
||
|
|
-- We need to delete all of the existing receipts because the indexes
|
||
|
|
-- will be wrong, and we'll get primary key violations if we try to
|
||
|
|
-- reuse existing stream IDs from a different sequence.
|
||
|
|
DELETE FROM syncapi_receipts;
|
||
|
|
|
||
|
|
-- Use the new syncapi_receipts_id sequence.
|
||
|
|
CREATE SEQUENCE IF NOT EXISTS syncapi_receipt_id;
|
||
|
|
ALTER SEQUENCE IF EXISTS syncapi_receipt_id RESTART WITH 1;
|
||
|
|
ALTER TABLE syncapi_receipts ALTER COLUMN id SET DEFAULT nextval('syncapi_receipt_id');
|
||
|
|
`)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("failed to execute upgrade: %w", err)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func DownFixSequences(tx *sql.Tx) error {
|
||
|
|
_, err := tx.Exec(`
|
||
|
|
-- We need to delete all of the existing receipts because the indexes
|
||
|
|
-- will be wrong, and we'll get primary key violations if we try to
|
||
|
|
-- reuse existing stream IDs from a different sequence.
|
||
|
|
DELETE FROM syncapi_receipts;
|
||
|
|
|
||
|
|
-- Revert back to using the syncapi_stream_id sequence.
|
||
|
|
DROP SEQUENCE IF EXISTS syncapi_receipt_id;
|
||
|
|
ALTER TABLE syncapi_receipts ALTER COLUMN id SET DEFAULT nextval('syncapi_stream_id');
|
||
|
|
`)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("failed to execute downgrade: %w", err)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|