Class: MongoClarify::Investigate

Inherits:
Object
  • Object
show all
Defined in:
lib/mongo_clarify/investigate_with_pattern_matching.rb,
lib/mongo_clarify/investigate_without_pattern_matching.rb

Instance Method Summary collapse

Constructor Details

#initialize(explain) ⇒ Investigate

Returns a new instance of Investigate.



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# File 'lib/mongo_clarify/investigate_with_pattern_matching.rb', line 5

def initialize(explain)
  @explain = explain
end

Instance Method Details

#execution_stats ⇒ Object 



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# File 'lib/mongo_clarify/investigate_with_pattern_matching.rb', line 20

def execution_stats
  case @explain
  in { executionStats: { nReturned: n, executionTimeMillis: msec, totalKeysExamined: keys, totalDocsExamined: docs } }
  else
    return
  end
  { n_returned: n, execution_time_millis: msec, total_keys_examined: keys, total_docs_examined: docs }
end

#operation_method ⇒ Object 



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# File 'lib/mongo_clarify/investigate_with_pattern_matching.rb', line 9

def operation_method
  case @explain
  in { queryPlanner: { winningPlan: { stage: 'COLLSCAN' } } }
    'Collection Scan'
  in { queryPlanner: { winningPlan: { stage: 'FETCH', inputStage: { stage: 'IXSCAN', indexName: index_name } } } }
    "Index Scan (Index Name: #{index_name})"
  else
    nil
  end
end