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  1. Core Server
  2. SERVER-40323

Plan analyzer helper functions cannot correctly handle explain output for sharded collections

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      For example, getAggPlanStage cannot handle an explain output in sharded collection passthroughs due to an assumption that there can only be one stage in the explain, failing with:

      Error: [1] != [2] are not equal : getAggPlanStage expects to find 0 or 1 matching stages. planStageList

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          Improvement - An improvement or enhancement to an existing feature or task. SERVER-24860 Optimize away entire pipeline if it can be answered using a query

          • Major - P3 - Major loss of function.
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