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relational/test/select_join_opt.query

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- improved an optimization, to produce a simpler select condition under certain circumstances git-svn-id: http://galileo.dmi.unict.it/svn/relational/trunk@343 014f5005-505e-4b48-8d0a-63407b615a7c
2011-11-07 13:01:33 +07:00
σ skill=='C' and chief==0 ((σ age<30 (people) ᑌ σ age>40(people)) ᐅᐊ skills)