TheForeverKnights
Region: KE
Tuesday 26 May 2026 20:12:48 GMT
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thgandalph :
actuall it is 2N not N+1 😁
2026-05-30 07:01:50
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gerlaxie :
A good collection here. i learnt something today
2026-05-27 16:30:59
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MimsyMad :
Good list but 2 minor issues; NULL is literally the default when the column sets it as such. Also beware claiming "most users dont..." unless you can back it up.
2026-05-27 11:39:37
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The Bored Trader :
having a good database is the most important part of the system. most full stack don’t even know what indexing is.
2026-05-27 11:56:33
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Vũ Linh :
I have a slide explaining the N + 1 problem. Sometimes it is not a problem with bounded and controlled number of entities. Sometimes it scales horribly poor. The single query with join can produce Cartesian product, that, under special circumstances, can cause out of memory error. A balance approach to this problem is 1 + batches queries.
2026-07-19 16:57:51
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