You've likely tried something like this:

Column::Description.like("50\\% discount")

For some reason, this ColumnTrait::like method only accepts a pattern string instead of a proper LikeExpr, which already supports ESCAPE. I've opened #2549 to fix that.

You can still build this expression by using the functionality from sea_query:

Expr::col(Column::Description).like(LikeExpr::new("50\\% discount").escape('\\'));

Here, the like is Expr::like. That method has the correct parameter type.

These query-building methods are a duplicated inconsistent mess. I've been complaining about this for a while and slowly improving the situation. Eventually, we should deduplicate and clean up all of this.