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relational
/
tests_dir
/
java_and_perl.query
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Test cases for optimization fix Add test cases that would fail in previous versions because of the just fixed optimization.
2016-04-09 03:09:01 +07:00
πname (
σ
skill=='Perl' (people ⋈ skills))
∪
π name (
σ
skill=='Java' (people ⋈ skills))