27 lines
718 B
Plaintext
27 lines
718 B
Plaintext
#open database pgraph2;
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#query meminit (1524);
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#query p2 loadgraph;
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# Queries the top 5 co-authors of publications of "Ralf Hartmut Gueting"
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# The results will be grouped and show the Authors with the sum of
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# joint publications.
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# As the node a2 is specifying a unique property (Name)m the corresponding
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# index will be used to the accelerate the query. For comparision see
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# match2-coauthors-slow not using the index.
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query p2
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match2 ['
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(
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( a )
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( a2 ( (Name "Ralf Hartmut Gueting") ))
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(doc Document)
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(a2 AUTHOR_OF doc)
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(a AUTHOR_OF doc)
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)',
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'( ((a Name) <> "Ralf Hartmut Gueting") ) ',
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'( ((a Name) Name) )']
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sortby[Name] groupby[Name; Cnt:group count] sortby[Cnt:desc] head[5] consume;
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