On 7/5/2013 10:59 AM, Paul Sanderson wrote:
Sorry - thats what I mean - the table (as redefined by simon)
create table lookup (rowindex int, rangestart int, rangeend int)
values in rowindex are not unique so I cannot make this column a primary
key so i am not sure whether RTrees would be any help in this scenario
create virtual table lookup_tree using rtree_i32(rangeid, rangestart,
rangeend);
create table lookup(rangeid integer primary key, rowindex int);
select * from
master m join lookup l on (m.rowindex = l.rowindex)
join lookup_tree lt on (l.rangeid=lt.rangeid)
where :x >= rangestart and and :x < rangeend;
--
Igor Tandetnik
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