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| author | faried nawaz <faried@gmail.com> | 2021-04-21 03:52:32 +0500 |
|---|---|---|
| committer | faried nawaz <faried@gmail.com> | 2021-05-08 02:00:43 +0500 |
| commit | 5be9d139816fa40ff6227950b58f3c6cea01fc81 (patch) | |
| tree | d8a12733bd1b6d383ce4ea3be05402b8dd637027 /rel | |
| parent | a0c9a2b4cc8c22d6238b0f31239c1e655f47730f (diff) | |
| download | pleroma-5be9d139816fa40ff6227950b58f3c6cea01fc81.tar.gz | |
a better query to delete from hashtags
old query:
Delete on hashtags (cost=5089.81..5521.63 rows=6160 width=18)
-> Hash Semi Join (cost=5089.81..5521.63 rows=6160 width=18)
Hash Cond: (hashtags.id = ht.id)
-> Seq Scan on hashtags (cost=0.00..317.28 rows=17528 width=14)
-> Hash (cost=5012.81..5012.81 rows=6160 width=20)
-> Merge Anti Join (cost=0.70..5012.81 rows=6160 width=20)
Merge Cond: (ht.id = hto.hashtag_id)
-> Index Scan using hashtags_pkey on hashtags ht (cost=0.29..610.53 rows=17528 width=14)
-> Index Scan using hashtags_objects_pkey on hashtags_objects hto (cost=0.42..3506.48 rows=68158 width=14)
new query:
Delete on hashtags ht (cost=0.70..5012.81 rows=6160 width=12)
-> Merge Anti Join (cost=0.70..5012.81 rows=6160 width=12)
Merge Cond: (ht.id = hto.hashtag_id)
-> Index Scan using hashtags_pkey on hashtags ht (cost=0.29..610.53 rows=17528 width=14)
-> Index Scan using hashtags_objects_pkey on hashtags_objects hto (cost=0.42..3506.48 rows=68158 width=14)
Diffstat (limited to 'rel')
0 files changed, 0 insertions, 0 deletions