Uploaded image for project: 'MariaDB ColumnStore'
  1. MariaDB ColumnStore
  2. MCOL-5223

querytstats + LEFT JOIN + LOWER() in ON condition cause "t/tuplehashjoin.cpp@1095: assertion 'idlsz > 1' failed" error

    XMLWordPrintable

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 6.3.1, 6.4.2
    • 22.08.8
    • None

    Description

      To reproduce:

        create table t1 (c1 varchar(200)) engine = columnstore;
        create table t2 (c2 char(20)) engine = columnstore;
         create view v1 as select distinct `t1`.`c1` AS `c1` from `t1` where !(`t1`.`c1` in (select `t2`.`c2` from `t2`));
         SELECT * from t1 a LEFT JOIN v1 n ON LOWER(n.c1) = LOWER(a.c1);
      

      Sep 19 09:31:37 1e3afaf1eaef Calpont[135]: 37.906020 |0|0|0| E 00 CAL0000: /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.6.8/storage/columnstore/columnstore/dbcon/joblist/tuplehashjoin.cpp@1095: assertion 'idlsz > 1' failed
      

      Error occured only if this all 3 conditions is given.

      • Querystats enabled
      • LEFT JOIN instead INNER JOIN
      • LOWER() function in the ON Condition.

      So if only querystats is disabled, it works.

      If only LEFT JOIN is replaced with INNER JOIN, it works.

      If only LOWER() funcions in the ON Condition will be removed, it works.

      Attachments

        Activity

          People

            denis0x0D Denis Khalikov
            Richard Richard Stracke
            Daniel Lee Daniel Lee (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.