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Why You Shouldn’t Use OFFSET and LIMIT For Your Pagination (ivopereira.net)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

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If you are wondering why lemmy is moving away from offset pagination since 0.19, here is a nice article about it

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[–] [email protected] 4 points 1 year ago (2 children)

For the article-impaired,

Using OFFSET+LIMIT for pagination forces a full table scan, which in large databases is expensive.

The alternative proposed is a cursor+based navigation, which is ID+LIMIT and requires ID to be an orderable type with monotonically increasing value.

[–] Blackmist 2 points 1 year ago

Which it almost never is.

Any data as simple as that is unlikely to reach a number of rows likely to cause an issue with performance.

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