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relational/test/java_and_perl.query
Salvo 'LtWorf' Tomaselli dc193fee39 Test cases for optimization fix 
Add test cases that would fail in previous versions
because of the just fixed optimization.
2016-04-09 10:09:01 +02:00

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πname (σ skill=='Perl' (people ⋈ skills)) ∪ π name (σ skill=='Java' (people ⋈ skills))
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