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Optimize a few queries

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Scott Nonnenberg 2021-12-20 13:04:02 -08:00 • committed by GitHub
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141
ts/sql/migrations/47-further-optimize.ts Normal file
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// Copyright 2021 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import type { Database } from 'better-sqlite3';
import type { LoggerType } from '../../types/Logging';
import { getOurUuid } from './41-uuid-keys';
import type { Query } from '../util';
export default function updateToSchemaVersion47(
currentVersion: number,
db: Database,
logger: LoggerType
): void {
if (currentVersion >= 47) {
return;
}
db.transaction(() => {
db.exec(
`
DROP INDEX messages_conversation;
ALTER TABLE messages
DROP COLUMN isStory;
ALTER TABLE messages
ADD COLUMN isStory INTEGER
GENERATED ALWAYS AS (type IS 'story');
ALTER TABLE messages
ADD COLUMN isChangeCreatedByUs INTEGER NOT NULL DEFAULT 0;
ALTER TABLE messages
ADD COLUMN shouldAffectActivity INTEGER
GENERATED ALWAYS AS (
type IS NULL
OR
type NOT IN (
'change-number-notification',
'group-v1-migration',
'message-history-unsynced',
'profile-change',
'story',
'universal-timer-notification',
'verified-change',
'keychange'
)
);
ALTER TABLE messages
ADD COLUMN shouldAffectPreview INTEGER
GENERATED ALWAYS AS (
type IS NULL
OR
type NOT IN (
'change-number-notification',
'group-v1-migration',
'message-history-unsynced',
'profile-change',
'story',
'universal-timer-notification',
'verified-change'
)
);
ALTER TABLE messages
ADD COLUMN isUserInitiatedMessage INTEGER
GENERATED ALWAYS AS (
type IS NULL
OR
type NOT IN (
'change-number-notification',
'group-v1-migration',
'message-history-unsynced',
'profile-change',
'story',
'universal-timer-notification',
'verified-change',
'group-v2-change',
'keychange'
)
);
ALTER TABLE messages
ADD COLUMN isTimerChangeFromSync INTEGER
GENERATED ALWAYS AS (
json_extract(json, '$.expirationTimerUpdate.fromSync') IS 1
);
ALTER TABLE messages
ADD COLUMN isGroupLeaveEvent INTEGER
GENERATED ALWAYS AS (
type IS 'group-v2-change' AND
json_array_length(json_extract(json, '$.groupV2Change.details')) IS 1 AND
json_extract(json, '$.groupV2Change.details[0].type') IS 'member-remove' AND
json_extract(json, '$.groupV2Change.from') IS NOT NULL AND
json_extract(json, '$.groupV2Change.from') IS json_extract(json, '$.groupV2Change.details[0].uuid')
);
ALTER TABLE messages
ADD COLUMN isGroupLeaveEventFromOther INTEGER
GENERATED ALWAYS AS (
isGroupLeaveEvent IS 1
AND
isChangeCreatedByUs IS 0
);
CREATE INDEX messages_conversation ON messages
(conversationId, isStory, storyId, received_at, sent_at);
CREATE INDEX messages_preview ON messages
(conversationId, shouldAffectPreview, isGroupLeaveEventFromOther, expiresAt, received_at, sent_at);
CREATE INDEX messages_activity ON messages
(conversationId, shouldAffectActivity, isTimerChangeFromSync, isGroupLeaveEventFromOther, received_at, sent_at);
CREATE INDEX message_user_initiated ON messages (isUserInitiatedMessage);
`
);
const ourUuid = getOurUuid(db);
if (!ourUuid) {
logger.warn('updateToSchemaVersion47: our UUID not found');
} else {
db.prepare<Query>(
`
UPDATE messages SET
isChangeCreatedByUs = json_extract(json, '$.groupV2Change.from') IS $ourUuid;
`
).run({
ourUuid,
});
}
db.pragma('user_version = 47');
})();
logger.info('updateToSchemaVersion47: success!');
}