Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-18748

REPLACE doesn't work with unique blobs on MyISAM table

    XMLWordPrintable

Details

    Description

      CREATE TABLE t (b BLOB, UNIQUE(b)) ENGINE=MyISAM;
      		 
      INSERT INTO t VALUES ('foo');
      		 
      REPLACE INTO t VALUES ('foo');
      		 
       
      		 
      # Cleanup
      		 
      DROP TABLE t;

      bb-10.4-release-long_unique 5ddae0e0

      		 
      mysqltest: At line 3: query 'REPLACE INTO t VALUES ('foo')' failed: 1062: Duplicate entry 'foo' for key 'b'

      I'm not sure whether it's supposed to work or not.

      InnoDB currently produces an assertion failure similar to MDEV-18731.

      Attachments

        Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. MDEV-18763 mi_rrnd: Conditional jump or move depends on uninitialised value upon inserting into blob with long key

          • Major - Major loss of function.
          • Closed
          is caused by

          Task - A task that needs to be done. MDEV-371 Unique indexes for blobs

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

          Bug - A problem which impairs or prevents the functions of the product. MDEV-30046 wrong row targeted with "insert ... on duplicate" and "replace", leading to data corruption

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

          Activity

            People

              serg Sergei Golubchik
              elenst Elena Stepanova
              Votes:
              0 Vote for this issue
              Watchers:
              2 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.