extension index
[/ɪkˈstɛnʃən ˈɪndɛks/]
nounpl: extension indexes / extension indices
índice de extensão
1. A database index created on one or more columns that extends beyond the primary key to improve query performance for specific search patterns
The extension index on the email column allows faster lookups of user accounts by email address.
O índice de extensão na coluna de email permite buscas mais rápidas de contas de usuário por endereço de email.
2. In medical/anatomical contexts, a measurement or scale indicating the degree of extension or stretching of a joint or body part
The extension index of the patient's knee showed significant improvement after physical therapy.
O índice de extensão do joelho do paciente mostrou melhora significativa após a fisioterapia.
3. A supplementary index that provides extended or additional indexing functionality beyond standard indexing methods
Using an extension index helped reduce query execution time from 5 seconds to 500 milliseconds.
Usar um índice de extensão ajudou a reduzir o tempo de execução da consulta de 5 segundos para 500 milissegundos.
This term is primarily used in technical (database management systems) and medical/physiotherapy contexts. In Brazil, it's commonly found in IT documentation and healthcare settings. The term is universal across English-speaking and Portuguese-speaking technical communities, with minimal regional variation in usage.
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