On 14 Sep 2017, at 8:02pm, Clemens Ladisch <clem...@ladisch.de> wrote:
> Jens Alfke wrote: >> can someone please tell me how to hoist/factor out the subexpression >> manually then? > > Move the subexpression into a subquery, then prevent subquery flattening > (http://www.sqlite.org/optoverview.html#flattening) by violating one of > the listed constraints. (These rules might change in the future ...) > > In this case, let's use rule 7: the subquery does not have a FROM clause: > > SELECT x, x FROM (SELECT slow(10) AS x); Nice. Assuming it works, which it looks like it should. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
