[GitHub] [age] jrgemignani commented on issue #330: Invalid Result Returned for OPTIONAL MATCH ... WITH ...

[GitBox <gi...@apache.org>]

jrgemignani commented on issue #330:
URL: https://github.com/apache/age/issues/330#issuecomment-1281405834

   I would be warry of specifying a match on a specific ID number, unless you verify that it is that ID.
   
   Note the following example -
   
   ```
   psql-11.5-5432-pgsql=# SELECT * from cypher('test', $$ MATCH (a:A) WITH a OPTIONAL MATCH (a)-[:incs]->(c) RETURN c, id(c) $$) as (c agtype, id agtype);
                                   c                                 |        id
   ------------------------------------------------------------------+------------------
    {"id": 1407374883553281, "label": "C", "properties": {}}::vertex | 1407374883553281
    {"id": 1407374883553282, "label": "C", "properties": {}}::vertex | 1407374883553282
   (2 rows)
   
   psql-11.5-5432-pgsql=# SELECT * from cypher('test', $$ MATCH (a:A) WHERE ID(a)=0 WITH a OPTIONAL MATCH (a)-[:incs]->(c) RETURN c, id(c) $$) as (c agtype, id agtype);
    c | id
   ---+----
   (0 rows)
   
   psql-11.5-5432-pgsql=#
   ```
   


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