# Learn 102

* 102: Merging data

  - Query on items/dicts
    + With merge strategy
  - Query on arrays/lists
    + It appends, replace or what ?
  - Query other types
  - Query without key (!)
    + Not the actual result, schema are not sub applied
      * BUG: TO Fix ? Performance issue ?

* 103: Scoped queries
  - Add scoped variables
  - Add variables to trees
  - Use loops
  - Use hierarchies, for hostgroups
  - Use includes for other files (Future)