Uploaded image for project: 'Ignite'
  1. Ignite
  2. IGNITE-17360

Sql. Introduce cache for parsed sql AST

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • None
    • None
    • sql

    Description

      According to the flamegraph.svg, parsing of the SQL statement takes about 2.7% of time even for the most simplest statement like select * from t_name. We could mitigate this problem by introducing a cache for a parsed statements.

      Attachments

        1. flamegraph.svg
          537 kB
          Konstantin Orlov

        Issue Links

          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. IGNITE-17765 Sql. Introduce cache for parsed statements

          • Major - Major loss of function.
          • Resolved
          split to

          Task - A task that needs to be done. IGNITE-17361 Sql. Investigate low performance of sql parser

          • Major - Major loss of function.
          • Open

          Activity

            People

              Unassigned Unassigned
              korlov Konstantin Orlov
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: