chongdae opened a new issue #34:
URL: https://github.com/apache/datasketches-postgresql/issues/34
`theta_sketch_union` is working well.
```
with d1 as (
select id, theta_sketch_build(val) sketch
from (values (1, 1), (1, 2), (1, 3), (2, 2), (2, 3), (2, 4)) as t(id,
val)
group by id
)
select
theta_sketch_get_estimate(theta_sketch_union(sketch)) agg
from d1
;
```
But `theta_sketch_intersection` is not working.
```
with d1 as (
select id, theta_sketch_build(val) sketch
from (values (1, 1), (1, 2), (1, 3), (2, 2), (2, 3), (2, 4)) as t(id,
val)
group by id
)
select
theta_sketch_get_estimate(theta_sketch_intersection(sketch)) agg
from d1
;
```
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