Automatic image labeling

migrations/20240514150647_user_files.sql

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+-- Add migration script here
+alter table uploads
+    drop constraint fk_uploads_user;
+create table user_uploads
+(
+    file    binary(32)       not null,
+    user_id integer unsigned not null,
+    created timestamp default current_timestamp,
+
+    constraint fk_user_uploads_file_id
+        foreign key (file) references uploads (id)
+            on delete cascade
+            on update restrict,
+    constraint fk_user_uploads_user_id
+        foreign key (user_id) references users (id)
+            on delete cascade
+            on update restrict
+);
+create unique index ix_user_uploads_file_pubkey on user_uploads (file, user_id);
+
+insert into user_uploads(file, user_id, created)
+select uploads.id, uploads.user_id, uploads.created
+from uploads;
+
+alter table uploads
+    drop column user_id;