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Improve performance of Delete All Data

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Scott Nonnenberg 2023-08-25 09:29:42 -07:00 committed by GitHub
parent cc13350d3f
commit 1f7386d7cf
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2 changed files with 20 additions and 0 deletions
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18
ts/sql/Server.ts
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@ -5515,6 +5515,9 @@ async function removeAll(): Promise<void> {
db.transaction(() => {
db.exec(`
--- Remove messages delete trigger for performance
DROP TRIGGER messages_on_delete;
DELETE FROM attachment_downloads;
DELETE FROM badgeImageFiles;
DELETE FROM badges;
@ -5546,6 +5549,21 @@ async function removeAll(): Promise<void> {
DELETE FROM uninstalled_sticker_packs;
INSERT INTO messages_fts(messages_fts) VALUES('optimize');
--- Re-create the messages delete trigger
--- See migration 45
CREATE TRIGGER messages_on_delete AFTER DELETE ON messages BEGIN
DELETE FROM messages_fts WHERE rowid = old.rowid;
DELETE FROM sendLogPayloads WHERE id IN (
SELECT payloadId FROM sendLogMessageIds
WHERE messageId = old.id
);
DELETE FROM reactions WHERE rowid IN (
SELECT rowid FROM reactions
WHERE messageId = old.id
);
DELETE FROM storyReads WHERE storyId = old.storyId;
END;
`);
})();
}

2
ts/sql/migrations/45-stories.ts
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@ -75,6 +75,8 @@ export default function updateToSchemaVersion45(
--- Update delete trigger to remove storyReads
--- Note: for future updates to this trigger, be sure to update Server.ts/removeAll()
--- (it deletes and re-adds this trigger for performance)
DROP TRIGGER messages_on_delete;
CREATE TRIGGER messages_on_delete AFTER DELETE ON messages BEGIN
DELETE FROM messages_fts WHERE rowid = old.rowid;