[_] fix: add parent_uuid support to folder sync queries

[apsantiso]

What

We fixed the folder sync a few weeks ago by adding a new index, but the query changed to parentUuid, so folder sync is slower again.

Let's standardize the indexes and queries to use parentUuid.

Changes

• Changed index name and predicate
• Changed workspace's folder listing / sync query to WHERE parent_uuid: NULL.

Benchmark

Before (index with parent_id IS NOT NULL)

Limit  (cost=18.21..18.22 rows=1 width=137) (actual time=0.190..0.192 rows=0 loops=1)
  Buffers: shared hit=6
  ->  Sort  (cost=18.21..18.22 rows=1 width=137) (actual time=0.189..0.190 rows=0 loops=1)
        Sort Key: updated_at
        Sort Method: quicksort  Memory: 25kB
        Buffers: shared hit=6
        ->  Bitmap Heap Scan on folders "FolderModel"  (cost=14.19..18.20 rows=1 width=137) (actual time=0.154..0.155 rows=0 loops=1)
              Recheck Cond: ((user_id = 10001) AND (parent_uuid IS NOT NULL))
              Filter: (updated_at > '2026-04-16 12:26:00+00'::timestamp with time zone)
              Buffers: shared hit=6
              ->  BitmapAnd  (cost=14.19..14.19 rows=1 width=0) (actual time=0.146..0.147 rows=0 loops=1)
                    Buffers: shared hit=6
                    ->  Bitmap Index Scan on user_id_folders_index  (cost=0.00..4.46 rows=4 width=0) (actual time=0.080..0.080 rows=11 loops=1)
                          Index Cond: (user_id = 10001)
                          Buffers: shared hit=3
                    ->  Bitmap Index Scan on folders_parent_uuid_index  (cost=0.00..9.48 rows=140 width=0) (actual time=0.063..0.063 rows=35 loops=1)
                          Index Cond: (parent_uuid IS NOT NULL)
                          Buffers: shared hit=3
Planning:
  Buffers: shared hit=19 read=1
Planning Time: 1.796 ms
Execution Time: 0.347 ms

After index:

Limit  (cost=0.14..8.16 rows=1 width=137) (actual time=0.079..0.080 rows=0 loops=1)
  Buffers: shared hit=1
  ->  Index Scan using idx_folders_user_parent_updated on folders "FolderModel"  (cost=0.14..8.16 rows=1 width=137) (actual time=0.070..0.070 rows=0 loops=1)
        Index Cond: ((user_id = 10001) AND (updated_at > '2026-04-16 12:26:00+00'::timestamp with time zone))
        Buffers: shared hit=1
Planning Time: 0.507 ms
Execution Time: 0.116 ms

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sg-gs]

Running migration @apsantiso

[sg-gs]

Migration run @apsantiso