> On Sep 12, 2017, at 12:23 PM, Nelson, Erik - 2
> <erik.l.nel...@bankofamerica.com> wrote:
>> select user()
> .54 <-- should this result be the same as the previous call to user()? Or
> would it get evaluated once after each sqlite3_create_function() call?
It gets evaluated whenever the SELECT runs. The value isn't cached anywhere.
The only difference between a deterministic and a regular function currently
(AFAIK) is that the former can be used in a CREATE INDEX statement. This allows
a query that makes an equivalent call to use the index. TL;DR: it's how you can
do efficient queries on derived values like JSON properties.
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