Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-19270

function as Window function causes debug assert

    XMLWordPrintable

Details

    Description

      When using AVG as a Window function I get a debug assert at sql_window.cc:3054

      Window_funcs_computation::setup()
      		 
       
      		 
        if (tab->filesort && tab->filesort->select)
      		 
        {
      		 
          sel= tab->filesort->select;
      		 
          DBUG_ASSERT(!sel->quick);
      		 
        }

      To reproduce:

      CREATE TABLE s3 (
      		 
        k1 bigint NOT NULL,
      		 
        c1 int DEFAULT NULL,
      		 
        PRIMARY KEY (k1)
      		 
      );
      		 
       
      		 
      SELECT k1, c1, avg(c1) OVER (ORDER BY c1) FROM s3 WHERE k1 < 100 ORDER BY k1;

      If you leave off the final ORDER BY k1 or the WHERE clause, no assert. If k1 is not a key, no assert.

      Attachments

        Issue Links

          is part of

          Bug - A problem which impairs or prevents the functions of the product. MCOL-3307 Non-Columnstore Window function causes debug assert

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19364 Server crashes on certain window function usage

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Activity

            People

              varun Varun Gupta (Inactive)
              David.Hall David Hall (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Git Integration

                  Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.