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relational/test/phones_of_people_with_personal_room.query

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Change relational language to use math symbols The symbols previously used were a Canadian script, and were looking good enough, but they might not be installed in every machine. Besides, all this is to workaround a Qt5 bug that prevents from rendering those symbols at times.
2015-05-31 12:01:03 -05:00
πname,phone(((πname,id(people)- π name,id(πid(σ i!=id and room==r(ρ id➡i,room➡r(person_room)*person_room)) ⋈ people)) ⋈ person_room) ⋈ rooms)
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