Method parse_operator

src/sql-parser/src/parser.rs:1534–1550

Parse an operator reference. Examples: `+` `OPERATOR(schema.+)` `OPERATOR("foo"."bar"."baz".@>)`

(&mut self)

    ///   * `OPERATOR(schema.+)`
    ///   * `OPERATOR("foo"."bar"."baz".@>)`
    fn parse_operator(&mut self) -> Result<Op, ParserError> {
        let mut namespace = vec![];
        let op = loop {
            match self.next_token() {
                Some(Token::Keyword(kw)) => namespace.push(kw.into()),
                Some(Token::Ident(id)) => namespace.push(self.new_identifier(id)?),
                Some(Token::Op(op)) => break op,
                Some(Token::Star) => break "*".to_string(),
                tok => self.expected(self.peek_prev_pos(), "operator", tok)?,
            }
            self.expect_token(&Token::Dot)?;
        };
        Ok(Op {
            namespace: Some(namespace),
            op,
        })
    }

    /// Parses an `ANY`, `ALL`, or `SOME` operation, starting after the `ANY`,
    /// `ALL`, or `SOME` keyword.