[GitHub] [age] safi50 commented on issue #918: How to add multiple edges in single query faster?

["safi50 (via GitHub)" <gi...@apache.org>]

safi50 commented on issue #918:
URL: https://github.com/apache/age/issues/918#issuecomment-1546854491

   Another way to do so is by using `UNWIND`.  Suppose I have 6 vertices: 
   
   ```
   (:Person {name: 'Joe', title: 'Developer'}),  
   (:Person {name: 'Andy', title: 'Manager'}),         
   (:Person {name: 'Hakan', title: 'Protector'}),     
   (:Person {name: 'Leyla', title: 'Assistant'}), 
   (:Person {name: 'Sofi', title: 'Explorer'}),          
   (:Person {name: 'Ian', title: 'Scientist'})   
   ```
   Now, I can use `UWIND` to create edges for these with a single cypher query. See example below: 
   
   ```
   SELECT * FROM cypher('test', $$
   WITH [
     {source: 'Joe', target: 'Andy', weight: 2},
     {source: 'Andy', target: 'Hakan', weight: 3},
     {source: 'Andy', target: 'Leyla', weight: 1},
     {source: 'Hakan', target: 'Sofi', weight: 4},
     {source: 'Sofi', target: 'Ian', weight: 2}
   ] AS edges
   
   UNWIND edges AS edge
   
   MATCH (source:Person {name: edge.source})
   MATCH (target:Person {name: edge.target})
   
   CREATE (source)-[rel:WORKS_WITH {weight: edge.weight}]->(target) RETURN rel $$) as ( a agtype);
   ```


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