SQLite Forum

Table and index in separate files
Yes, checking and occasionally rebuilding indexes was common.

Moving from disks that spin around, and hence have rotational delay, to solid state drives is probably the "newest" innovation. I read an article in "Popular Mechanics", in 1967 or 68. 

My SQLITE apps are about 3 times faster on the removable devices I bought last year.

In 1990, for an IMS database, I suggested moving the indexes to separate disks, but my manager started shaking and trembling, so I dropped the suggestion.