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dendrite/roomserver/storage/sqlite3/deltas/20201028212440_add_forgotten_column.go
Neil Alexander 5ce1fe80de
State storage refactor (#1839)
* Hash-deduplicated state storage (and migrations) for PostgreSQL and SQLite

* Refactor droomserver database setup for migrations

* Fix conflict statements

* Update migration names

* Set a boundary for old to new block/snapshot IDs so we don't rewrite them more than once accidentally

* Create sequence if not exists

* Fix boundary queries

* Fix boundary queries

* Use Query

* Break out queries a bit

* More sequence tweaks

* Query parameters are not playing the game

* Injection escaping may not work for CREATE SEQUENCE after all

* Fix snapshot sequence name

* Use boundaried IDs in SQLite too

* Use IFNULL for SQLite

* Use COALESCE in PostgreSQL

* Review comments @Kegsay
2021-04-26 13:25:57 +01:00

84 lines
2.7 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(UpAddForgottenColumn, DownAddForgottenColumn)
goose.AddMigration(UpStateBlocksRefactor, DownStateBlocksRefactor)
}
func LoadAddForgottenColumn(m *sqlutil.Migrations) {
m.AddMigration(UpAddForgottenColumn, DownAddForgottenColumn)
}
func UpAddForgottenColumn(tx *sql.Tx) error {
_, err := tx.Exec(` ALTER TABLE roomserver_membership RENAME TO roomserver_membership_tmp;
CREATE TABLE IF NOT EXISTS roomserver_membership (
room_nid INTEGER NOT NULL,
target_nid INTEGER NOT NULL,
sender_nid INTEGER NOT NULL DEFAULT 0,
membership_nid INTEGER NOT NULL DEFAULT 1,
event_nid INTEGER NOT NULL DEFAULT 0,
target_local BOOLEAN NOT NULL DEFAULT false,
forgotten BOOLEAN NOT NULL DEFAULT false,
UNIQUE (room_nid, target_nid)
);
INSERT
INTO roomserver_membership (
room_nid, target_nid, sender_nid, membership_nid, event_nid, target_local
) SELECT
room_nid, target_nid, sender_nid, membership_nid, event_nid, target_local
FROM roomserver_membership_tmp
;
DROP TABLE roomserver_membership_tmp;`)
if err != nil {
return fmt.Errorf("failed to execute upgrade: %w", err)
}
return nil
}
func DownAddForgottenColumn(tx *sql.Tx) error {
_, err := tx.Exec(` ALTER TABLE roomserver_membership RENAME TO roomserver_membership_tmp;
CREATE TABLE IF NOT EXISTS roomserver_membership (
room_nid INTEGER NOT NULL,
target_nid INTEGER NOT NULL,
sender_nid INTEGER NOT NULL DEFAULT 0,
membership_nid INTEGER NOT NULL DEFAULT 1,
event_nid INTEGER NOT NULL DEFAULT 0,
target_local BOOLEAN NOT NULL DEFAULT false,
UNIQUE (room_nid, target_nid)
);
INSERT
INTO roomserver_membership (
room_nid, target_nid, sender_nid, membership_nid, event_nid, target_local
) SELECT
room_nid, target_nid, sender_nid, membership_nid, event_nid, target_local
FROM roomserver_membership_tmp
;
DROP TABLE roomserver_membership_tmp;`)
if err != nil {
return fmt.Errorf("failed to execute downgrade: %w", err)
}
return nil
}