mirror of
https://github.com/element-hq/dendrite.git
synced 2025-07-01 16:26:26 +00:00
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright 2024 New Vector Ltd.
|
|
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
|
|
// Please see LICENSE files in the repository root for full details.
|
|
|
|
package deltas
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"fmt"
|
|
)
|
|
|
|
func UpFixSequences(ctx context.Context, tx *sql.Tx) error {
|
|
_, err := tx.ExecContext(ctx, `
|
|
-- 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(ctx context.Context, tx *sql.Tx) error {
|
|
_, err := tx.ExecContext(ctx, `
|
|
-- 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
|
|
}
|