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Add deep clean for users that have tons of pending deletion requests (#285)

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David Dworken 2025-01-14 21:44:52 -07:00 committed by GitHub
parent 9049dbeebb
commit 23ed840aa3
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1 changed files with 24 additions and 0 deletions
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24
backend/server/internal/database/db.go
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@ -544,6 +544,30 @@ func (db *DB) DeepClean(ctx context.Context) error {
if err != nil { if err != nil {
return err return err
} }
err = db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
r := tx.Exec(`
CREATE TEMP TABLE high_del_req_users AS (
SELECT user_id
FROM deletion_requests
GROUP BY 1
HAVING COUNT(*) > 100000
)`)
if r.Error != nil {
return fmt.Errorf("failed to create list of users with too many deletion requests: %w", r.Error)
}
r = tx.Raw(`
DELETE FROM deletion_requests
WHERE user_id IN (SELECT * FROM high_del_req_users) AND read_count > 25;
`)
if r.Error != nil {
return fmt.Errorf("failed to delete entries for overly active users: %w", r.Error)
}
fmt.Printf("Ran deep clean for overly active deletion requests and deleted %d rows\n", r.RowsAffected)
return nil
})
if err != nil {
return err
}
return db.WithContext(ctx).Transaction(func(tx *gorm.DB) error { return db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
// Delete entries for integration test users // Delete entries for integration test users
r := tx.Exec(` r := tx.Exec(`