[jira] [Reopened] (SPARK-7893) Complex Operators between Graphs

["Andy Huang (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-7893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Huang reopened SPARK-7893:
-------------------------------

This issue explain the meaning of complex operators and index all related sub-issues. It will help uses without overall graph theory to understand sub-issues better.

> Complex Operators between Graphs
> --------------------------------
>
>                 Key: SPARK-7893
>                 URL: https://issues.apache.org/jira/browse/SPARK-7893
>             Project: Spark
>          Issue Type: Improvement
>          Components: GraphX
>            Reporter: Andy Huang
>              Labels: complex, graph, join, operators, union
>
> Currently there are 30+ operators in GraphX, while few of them consider operators between graphs. The only one is _*mask*_, which takes another graph as a parameter and return a new graph.
> In many complex case,such as _*streaming graph, small graph merge into huge graph*_, higher level operators of graphs can help users to focus and think in graph. Performance optimization can be done internally and be transparent to them.
> Complex graph operator list is here:[complex_graph_operations|http://techieme.in/complex-graph-operations/]
> * Union of Graphs ( G ∪ H )
> * Intersection of Graphs( G ∩ H)
> * Graph Join
> * Difference of Graphs（G – H）
> * Graph Complement
> * Line Graph ( L(G) )
> This issue will be index of all these operators



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