Fucun Chu created IMPALA-10581:
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Summary: Implement ds_theta_intersect_f() function
Key: IMPALA-10581
URL: https://issues.apache.org/jira/browse/IMPALA-10581
Project: IMPALA
Issue Type: New Feature
Components: Backend, Frontend
Reporter: Fucun Chu
Assignee: Fucun Chu
This function receives two strings that are serialized Apache DataSketches
Theta sketches. Computes the intersection of two sketches of same or different
column and returns the resulting sketch of intersection.
Example:
{code:java}
select ds_theta_estimate(ds_theta_intersect_f(sketch1, sketch2))
from sketch_tbl;
+-----------------------------------------------------------+
| ds_theta_estimate(ds_theta_intersect_f(sketch1, sketch2)) |
+-----------------------------------------------------------+
| 5 |
+-----------------------------------------------------------+{code}
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