explain.depesz.com

PostgreSQL's explain analyze made readable

Result: Go3A

Settings
# exclusive inclusive rows x rows loops node
1. 169.716 1,006.902 ↓ 9.0 137,701 1

Hash Join (cost=62,004.71..64,307.94 rows=15,332 width=81) (actual time=746.559..1,006.902 rows=137,701 loops=1)

  • Hash Cond: (active_sku_catalog_price_caches.id = sku_catalog_price_caches.id)
2. 22.866 729.143 ↓ 9.0 137,701 1

Subquery Scan on active_sku_catalog_price_caches (cost=53,839.91..54,069.89 rows=15,332 width=16) (actual time=638.196..729.143 rows=137,701 loops=1)

3. 36.564 706.277 ↓ 9.0 137,701 1

Unique (cost=53,839.91..53,916.57 rows=15,332 width=32) (actual time=638.194..706.277 rows=137,701 loops=1)

4. 167.547 669.713 ↓ 9.0 137,701 1

Sort (cost=53,839.91..53,878.24 rows=15,332 width=32) (actual time=638.192..669.713 rows=137,701 loops=1)

  • Sort Key: sku_catalog_price_caches_1.sku_id, sku_catalog_price_caches_1.active_at DESC, sku_catalog_price_caches_1.store_id
  • Sort Method: external merge Disk: 5672kB
5. 146.092 502.166 ↓ 9.0 137,701 1

Hash Right Join (cost=48,540.51..52,774.01 rows=15,332 width=32) (actual time=333.359..502.166 rows=137,701 loops=1)

  • Hash Cond: (sku_catalog_price_caches_1.sku_id = skus.id)
6. 22.747 22.747 ↑ 1.0 137,702 1

Seq Scan on sku_catalog_price_caches sku_catalog_price_caches_1 (cost=0.00..3,872.02 rows=137,702 width=32) (actual time=0.010..22.747 rows=137,702 loops=1)

7. 47.782 333.327 ↓ 9.0 137,701 1

Hash (cost=48,348.86..48,348.86 rows=15,332 width=4) (actual time=333.327..333.327 rows=137,701 loops=1)

  • Buckets: 131072 (originally 16384) Batches: 2 (originally 1) Memory Usage: 3445kB
8. 285.545 285.545 ↓ 9.0 137,701 1

Seq Scan on skus (cost=0.00..48,348.86 rows=15,332 width=4) (actual time=0.014..285.545 rows=137,701 loops=1)

  • Filter: (usable AND (NOT dummy) AND ('2019-03-11 04:20:09.132799'::timestamp without time zone >= COALESCE(start_display_date_cache, '2019-03-09 16:00:00'::timestamp without time zone)) AND ('2019-03-11 04:20:09.132799'::timestamp without time zone <= COALESCE(end_display_date_cache, '2019-03-16 15:59:59.999999'::timestamp without time zone)) AND ((product_status_cache)::text = 'published'::text) AND ((color_option_status_cache)::text = 'published'::text) AND ((size_option_status_cache)::text = 'published'::text))
  • Rows Removed by Filter: 156
9. 57.083 108.043 ↑ 1.0 137,702 1

Hash (cost=4,560.53..4,560.53 rows=137,702 width=81) (actual time=108.043..108.043 rows=137,702 loops=1)

  • Buckets: 32768 Batches: 8 Memory Usage: 2387kB
10. 50.960 50.960 ↑ 1.0 137,702 1

Seq Scan on sku_catalog_price_caches (cost=0.00..4,560.53 rows=137,702 width=81) (actual time=0.012..50.960 rows=137,702 loops=1)

  • Filter: ((store_id IS NULL) AND (active_at <= '2019-03-11 04:20:09.132652'::timestamp without time zone) AND ((currency_code)::text = 'HKD'::text))