[..]
"Indices" is originally a Latin plural, while "Indexes" has taken the English way of making plurals, using –s or –es.
"Indices" is used when referring to mathematical, scientific and statistical contexts. It is used to refer to a numbers, symbols, and figures comparing a value to a standard.
"Indexes" is usually used in reference to written documents, such as bibliographical or citation listings.
[..]
Based on that definition “indexes” is probably more common in the context of databases than indices which makes me suspect it’ll win in this poll given the audience of HN.
[..] "Indices" is originally a Latin plural, while "Indexes" has taken the English way of making plurals, using –s or –es.
"Indices" is used when referring to mathematical, scientific and statistical contexts. It is used to refer to a numbers, symbols, and figures comparing a value to a standard.
"Indexes" is usually used in reference to written documents, such as bibliographical or citation listings. [..]
Based on that definition “indexes” is probably more common in the context of databases than indices which makes me suspect it’ll win in this poll given the audience of HN.