Hello,
If there any plan to get this in? (see:
http://sqlite.org:8080/cgi-bin/mailman/private/sqlite-users/2014-September/055065.html
)
Note that this seems implemented by several databases now, and this is a
bit different from virtual columns, which is what the previous discussion
ended with. Virtual columns force a table alteration (adding the columns)
why indexes on expressions eventually speed up the search on conditions
like f(x)='value', if the index exists. You add the index only if it makes
sense from a performance standpoint, and it is not required.

Thanks!
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