Hi,

Is this behavior known?  The third query returns no rows even though bar = 1.

sqlite> select region, sum(edge) edge, sum(infra) infra from (select 1 region, 
0 edge, 1 infra union select 1 region, 1 edge, 0 infra) group by 
region;region|edge|infra
1|1|1
sqlite> select ind, sum(foo) foo, sum(bar) bar from (select 1 ind, 0 foo, 1 bar 
union select 1 ind, 1 foo, 0 bar) group by ind;
ind|foo|bar
1|1|1
sqlite> select ind, sum(foo) foo, sum(bar) bar from (select 1 ind, 0 foo, 1 bar 
union select 1 ind, 1 foo, 0 bar) group by ind having foo > 0;
ind|foo|bar
1|1|1
sqlite> select ind, sum(foo) foo, sum(bar) bar from (select 1 ind, 0 foo, 1 bar 
union select 1 ind, 1 foo, 0 bar) group by ind having bar > 0;
sqlite> select * from (select ind, sum(foo) foo, sum(bar) bar from (select 1 
ind, 0 foo, 1 bar union select 1 ind, 1 foo, 0 bar) group by ind) where bar > 0;
ind|foo|bar
1|1|1
sqlite>

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