Method unnest

datafusion/sql/src/unparser/ast.rs:504–507

(&mut self, value: UnnestRelationBuilder)

    }

    pub fn unnest(&mut self, value: UnnestRelationBuilder) -> &mut Self {
        self.relation = Some(TableFactorBuilder::Unnest(value));
        self
    }

    pub fn flatten(&mut self, value: FlattenRelationBuilder) -> &mut Self {
        self.relation = Some(TableFactorBuilder::Flatten(value));