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  1. Ignite
  2. IGNITE-14816

Calcite engine. Change TreeMap in sorted IndexSpoolNode to ArrayList

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • None
    • None
    • None

    Description

      IgniteSortedIndexSpool assumes that the underlying input is already sorted, but the execution node creates TreeMap to find the rows (see IndexSpoolNode#createTreeSpool). This TreeMap can be replaced with ArrayList and binary search with the same efficiency for searching and lower costs for inserting data. 

        

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          New Feature - A new feature of the product, which has yet to be developed. IGNITE-12248 Apache Calcite based query execution engine

          • Major - Major loss of function.
          • Open
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          Web Link GitHub Pull Request #9234

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              xtern Pavel Pereslegin
              alex_pl Aleksey Plekhanov
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