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  1. MariaDB Server
  2. MDEV-31324

Crash by subselect with unused columns

Details

    Description

      The server crashes after select with unused columns in a subselect with the following pattern:
      SELECT DISTINCT col1 FROM (SELECT col1, col2 FROM foo)
      The problem is col2.
      In version 10.10.3 and 10.11.2 the same query does not cause errors.

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31240 Crash with condition pushable into derived and containing outer reference

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Activity

            alice Alice Sherepa added a comment -

            Thanks!
            This is the same problem as MDEV-31240. Setting optimizer_switch="split_materialized=off" could be used as a workaround until the fix is released.

            alice Alice Sherepa added a comment - Thanks! This is the same problem as MDEV-31240 . Setting optimizer_switch="split_materialized=off" could be used as a workaround until the fix is released.

            People

              Unassigned Unassigned
              netbreaker72 Rico Koerner
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              Dates

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                Updated:
                Resolved:

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