Uploaded image for project: 'MariaDB ColumnStore'
  1. MariaDB ColumnStore
  2. MCOL-5116

Detect impossible predicates in WHERE and HAVING filters

    XMLWordPrintable

Details

    Description

      There are cases when MCS start processing queries with impossible conditions that must return empty set, e.g. SELECT * FROM t1 WHERE t1.c1 = 1 AND t1.c1 = 2.
      The server has code sections that detects impossible conditions in both WHERE and HAVING so their logic should be reused.

      Attachments

        Activity

          People

            Unassigned Unassigned
            drrtuy Roman
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

            Dates

              Created:
              Updated:

              Git Integration

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