Generelt @> er operatøren "indeholder".
Den er defineret for flere datatyper.
- arrays:https://www.postgresql.org/ docs/current/static/functions-array.html
- intervaltyper:https://www.postgresql.org /docs/current/static/functions-range.html
- geometriske typer:https://www.postgresql.org /docs/current/static/functions-geometry.html
- JSON (og JSONB):https://www. postgresql.org/docs/current/static/functions-json.html