On 10/16/18, dave <[email protected]> wrote: > > And also the meaning/use of SQLITE_INDEX_CONSTRAINT_FUNCTION, that would be > super helpful. >
The SQLITE_INDEX_CONSTRAINT_FUNCTION mechanism was added to support the new Geopoly extension, and the ability to index on things like "WHERE geopoly_within(_shape,...)" and "WHERE geopoly_overlap(_shape,...)". There is little to no documentation on the SQLITE_INDEX_CONSTRAINT_FUNCTION mechanism yet. See the geopoly implementation for an example. -- D. Richard Hipp [email protected] _______________________________________________ sqlite-users mailing list [email protected] http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
