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relational/test/union_not_select.query
LtWorf 71697bb2e8 - Implemented select_union_intersect_subtract general optimization 
- Added tests for the new optimization



git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@268 014f5005-505e-4b48-8d0a-63407b615a7c
2011-02-18 18:11:39 +00:00

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σ skill=='C' (skills) - σ id%2==0(skills)
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