Function IsNull

dialect/sql/builder.go:1038–1040

IsNull returns the `IS NULL` predicate.

(col string)

// IsNull returns the `IS NULL` predicate.
func IsNull(col string) *Predicate {
	return P().IsNull(col)
}

// IsNull appends the `IS NULL` predicate.
func (p *Predicate) IsNull(col string) *Predicate {