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-- ================================================================
-- Setup the table
--
SELECT hll_set_output_version(1);
DROP TABLE IF EXISTS test_beelewuo;
CREATE TABLE test_beelewuo (
recno SERIAL,
cardinality double precision,
raw_value bigint,
union_compressed_multiset hll
);
-- Copy the CSV data into the table
--
\copy test_beelewuo (cardinality, raw_value, union_compressed_multiset) from sql/data/cumulative_add_sparse_random.csv with csv header
SELECT COUNT(*) FROM test_beelewuo;
-- Test incremental adding.
SELECT curr.recno,
curr.union_compressed_multiset,
hll_add(prev.union_compressed_multiset, hll_hashval(curr.raw_value))
FROM test_beelewuo prev, test_beelewuo curr
WHERE curr.recno > 1
AND curr.recno = prev.recno + 1
AND curr.union_compressed_multiset !=
hll_add(prev.union_compressed_multiset, hll_hashval(curr.raw_value))
ORDER BY curr.recno;
-- Test cardinality of incremental adds.
SELECT curr.recno,
curr.cardinality,
hll_cardinality(hll_add(prev.union_compressed_multiset,
hll_hashval(curr.raw_value)))
FROM test_beelewuo prev, test_beelewuo curr
WHERE curr.recno > 1
AND curr.recno = prev.recno + 1
AND curr.cardinality !=
hll_cardinality(hll_add(prev.union_compressed_multiset,
hll_hashval(curr.raw_value)))
ORDER BY curr.recno;
DROP TABLE test_beelewuo;
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