rafsun42 commented on issue #982:
URL: https://github.com/apache/age/issues/982#issuecomment-1765045565

   @Zainab-Saad 
   
   1. Why does `parallel_tuple_cost` forces parallel scan? Why does PG 
automatically chose parallel scan for master, but not for label redesign?
   
   2. Is label redesign slow because of `_ag_build_edge` function?
   I tried recreating the query- `(:Person)-[e:EDGE]->(:Title)` in SQL. Except, 
I used `SELECT * ..` instead of `SELECT _ag_build_edge( ...`. Hint: If you use 
VERBOSE with EXPLAIN, you will see what expression is projected by a plan node.
   The execution time was same before and after label redesign. Could you 
verify if that is the case?
   
   3. Add index to make further better.
   Can we add index on start\end_label_id to make these queries faster?
   
   Additionally, should we do this performance tests after converting label ID 
columns into array?


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