Method is_flatten_table_alias

datafusion/sql/src/unparser/ast.rs:194–196

Returns true if the given table alias refers to a FLATTEN relation.

(&self, alias: &str)

    /// Returns true if the given table alias refers to a FLATTEN relation.
    pub fn is_flatten_table_alias(&self, alias: &str) -> bool {
        self.flatten_table_aliases.iter().any(|a| a == alias)
    }

    /// Returns the most recently generated flatten alias, or `None` if
    /// `next_flatten_alias` has not been called yet.