Keuntae Park created TAJO-1525:
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Summary: Implement INTERSECT ALL physical operator
Key: TAJO-1525
URL: https://issues.apache.org/jira/browse/TAJO-1525
Project: Tajo
Issue Type: Sub-task
Reporter: Keuntae Park
As discussed in TAJO-1517,
INTERSECT ALL needs new physical operator,
which returns the exact number of overlapping rows between results of two query
blocks.
For example, when query1 returns
{code}
1, 3, 3, 3
{code}
while query2 returns
{code}
3, 3
{code}
query1 INTERSECT ALL query2 should return
{code}
3, 3
{code}
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