arangosh> var query = "FOR doc IN mycollection FILTER doc.value > 42 RETURN doc";
arangosh> require("org/arangodb/aql/explainer").explain(query, {colors:false});
Query string:
 FOR doc IN mycollection FILTER doc.value > 42 RETURN doc

Execution plan:
 Id   NodeType                  Est.   Comment
  1   SingletonNode                1   * ROOT
  2   EnumerateCollectionNode    201     - FOR doc IN mycollection   /* full collection scan */
  3   CalculationNode            201       - LET #1 = doc.`value` > 42   /* simple expression */   /* collections used: doc : mycollection */
  4   FilterNode                 201       - FILTER #1
  5   ReturnNode                 201       - RETURN doc

Indexes used:
 none

Optimization rules applied:
 none