Method parse_alter_system

src/sql-parser/src/parser.rs:6234–6269

Parse an ALTER SYSTEM statement.

(&mut self)

    /// Parse an ALTER SYSTEM statement.
    fn parse_alter_system(&mut self) -> Result<Statement<Raw>, ParserStatementError> {
        match self
            .expect_one_of_keywords(&[SET, RESET])
            .map_no_statement_parser_err()?
        {
            SET => {
                let name = self
                    .parse_identifier()
                    .map_parser_err(StatementKind::AlterSystemSet)?;
                self.expect_keyword_or_token(TO, &Token::Eq)
                    .map_parser_err(StatementKind::AlterSystemSet)?;
                let to = self
                    .parse_set_variable_to()
                    .map_parser_err(StatementKind::AlterSystemSet)?;
                Ok(Statement::AlterSystemSet(AlterSystemSetStatement {
                    name,
                    to,
                }))
            }
            RESET => {
                if self.parse_keyword(ALL) {
                    Ok(Statement::AlterSystemResetAll(
                        AlterSystemResetAllStatement {},
                    ))
                } else {
                    let name = self
                        .parse_identifier()
                        .map_parser_err(StatementKind::AlterSystemReset)?;
                    Ok(Statement::AlterSystemReset(AlterSystemResetStatement {
                        name,
                    }))
                }
            }
            _ => unreachable!(),
        }
    }

    fn parse_alter_connection(&mut self) -> Result<Statement<Raw>, ParserStatementError> {
        let if_exists = self.parse_if_exists().map_no_statement_parser_err()?;