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Table 4: 
Operator prevalence in Break. Lists the percentage of QDMRs where the operator appears.
OperatorQDMRQDMRhigh
SELECT 100% 100% 
PROJECT 69.0% 35.6% 
FILTER 53.2% 15.3% 
AGGREGATE 38.1% 22.3% 
BOOLEAN 30.0% 4.6% 
COMPARATIVE 17.0% 1.0% 
GROUP 9.7% 0.7% 
SUPERLATIVE 6.3% 13.0% 
UNION 5.5% 0.5% 
ARITHMETIC 5.4% 11.2% 
DISCARD 3.2% 1.2% 
INTERSECTION 2.7% 2.8% 
SORT 0.9% 0.0% 
Total 60,150 23,828 
OperatorQDMRQDMRhigh
SELECT 100% 100% 
PROJECT 69.0% 35.6% 
FILTER 53.2% 15.3% 
AGGREGATE 38.1% 22.3% 
BOOLEAN 30.0% 4.6% 
COMPARATIVE 17.0% 1.0% 
GROUP 9.7% 0.7% 
SUPERLATIVE 6.3% 13.0% 
UNION 5.5% 0.5% 
ARITHMETIC 5.4% 11.2% 
DISCARD 3.2% 1.2% 
INTERSECTION 2.7% 2.8% 
SORT 0.9% 0.0% 
Total 60,150 23,828 
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