I'm really curious, what communities use that word? I've been working with SQL for 20+ years, and have literally never come across that word a single time in a

I'm really curious, what communities use that word? I've been working with SQL for 20+ years, and have literally never come across that word a single time in any documentation, tutorial, Stack Overflow answer, or here on HN. Working in Postgres, MySQL and SQLite. Is it used at some particular company, or open source community, or with a particular database, or something?