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https://explainextended.com/2009/10/23/mysql-order-by-limit-performance-late-row-lookups

MySQL ORDER BY / LIMIT performance: late row lookups

A late row lookup requires that the engine looks up a row in a table only if it had not been filtered by the index. MySQL is not capable of doing this but this can be emulated. It improves the LIMIT performance and filtering efficiency on the indexed fields



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MySQL ORDER BY / LIMIT performance: late row lookups

https://explainextended.com/2009/10/23/mysql-order-by-limit-performance-late-row-lookups

A late row lookup requires that the engine looks up a row in a table only if it had not been filtered by the index. MySQL is not capable of doing this but this can be emulated. It improves the LIMIT performance and filtering efficiency on the indexed fields



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https://explainextended.com/2009/10/23/mysql-order-by-limit-performance-late-row-lookups

MySQL ORDER BY / LIMIT performance: late row lookups

A late row lookup requires that the engine looks up a row in a table only if it had not been filtered by the index. MySQL is not capable of doing this but this can be emulated. It improves the LIMIT performance and filtering efficiency on the indexed fields

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