2020-08-26 10:15:24 +07:00
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from relational.optimizer import optimize_program
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a = optimize_program('''ppl_skills = people ⧓skills
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ppl_skills1 = ppl_skills ∪ (people ⧓skills)
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ppl_skills ∩ ppl_skills1 ⧓ dates''', {})
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assert a == '''optm_a = people⧓skills
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optm_b = optm_a⧓dates'''
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