# Page Not Found

The URL `ref/xpand/operators/IS` does not exist.

You might be looking for one of these pages:
- [IS](https://mariadb.com/docs/server/reference/sql-structure/operators/comparison-operators/is.md)
- [IN](https://mariadb.com/docs/server/reference/sql-structure/operators/comparison-operators/in.md)
- [IS NOT](https://mariadb.com/docs/server/reference/sql-structure/operators/comparison-operators/is-not.md)
- [ISNULL](https://mariadb.com/docs/server/reference/sql-structure/operators/comparison-operators/isnull.md)
- [IS JSON](https://mariadb.com/docs/server/reference/sql-structure/operators/comparison-operators/is-json.md)

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