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Created by: eseliger
Some little quality of life improvements I found while investigating some things around the repo table.
Before
QUERY PLAN
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Limit (cost=107892.05..107892.06 rows=1 width=54) (actual time=195.665..197.576 rows=1 loops=1)
-> Sort (cost=107892.05..107892.06 rows=1 width=54) (actual time=195.663..197.574 rows=1 loops=1)
Sort Key: r.updated_at DESC
Sort Method: top-N heapsort Memory: 25kB
-> Nested Loop (cost=1000.43..107892.04 rows=1 width=54) (actual time=10.582..197.542 rows=49 loops=1)
-> Gather (cost=1000.00..107889.39 rows=1 width=4) (actual time=10.561..197.306 rows=49 loops=1)
Workers Planned: 2
Workers Launched: 2
-> Parallel Seq Scan on external_service_repos esr (cost=0.00..106889.29 rows=1 width=4) (actual time=5.638..190.964 rows=16 loops=3)
Filter: (clone_url = 'https://github.com/sourcegraph/sourcegraph'::text)
Rows Removed by Filter: 1454816
-> Index Scan using repo_pkey on repo r (cost=0.43..2.65 rows=1 width=58) (actual time=0.004..0.004 rows=1 loops=49)
Index Cond: (id = esr.repo_id)
Planning Time: 0.370 ms
Execution Time: 197.618 ms
(15 rows)After
QUERY PLAN
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Limit (cost=5.44..5.44 rows=1 width=54) (actual time=0.234..0.235 rows=1 loops=1)
-> Sort (cost=5.44..5.44 rows=1 width=54) (actual time=0.234..0.234 rows=1 loops=1)
Sort Key: r.updated_at DESC
Sort Method: top-N heapsort Memory: 25kB
-> Nested Loop (cost=0.99..5.43 rows=1 width=54) (actual time=0.068..0.218 rows=49 loops=1)
-> Index Scan using erik_remove_test on external_service_repos esr (cost=0.56..2.78 rows=1 width=4) (actual time=0.058..0.109 rows=49 loops=1)
Index Cond: (clone_url = 'https://github.com/sourcegraph/sourcegraph'::text)
-> Index Scan using repo_pkey on repo r (cost=0.43..2.65 rows=1 width=58) (actual time=0.002..0.002 rows=1 loops=49)
Index Cond: (id = esr.repo_id)
Planning Time: 0.552 ms
Execution Time: 0.260 ms
(11 rows)