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semantic_acyclicity (202B)

      1 # Semantic acyclicity
      2 
      3 - decide if [conjunctive_query] is [query_equivalent] to [conjunctive_query_acyclic]
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      5 - e.g., for [uc2rpq]
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      7 Up: [database_theory]
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      9 See also: [semantic_treewidth], [formula_width]