Type:
New Feature
Priority:
Major
Resolution:
Fixed
Affects Version/s:
6.3.1
The code in primitives/linux-port/column.cpp:vectorizedFiltering suffers calculating min/max values for a block in a scalar manner that takes place in vectWriteRIDValues/vectWriteColValues. According with my observations we can reduce the timings 20% down removing this deficiency.
Tested with 10**9 int64 records and a simple query 'SELECT c1 FROM t1 WHERE c1 = 5 OR c1 = 10;
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Done, after testing (on 10**6 values, for a 30 s period) the increase shown is from 3826 queries to 5612, about 45%.