Function parse_one_statement

src/mz-deploy/src/project/compiler.rs:1080–1086

Parse a SQL string that must contain exactly one statement. Returns `Err(())` if parsing fails or the string contains zero or multiple statements.

(sql: &str)

/// Returns `Err(())` if parsing fails or the string contains zero or
/// multiple statements.
fn parse_one_statement(sql: &str) -> Result<Statement<Raw>, ()> {
    let mut statements = parse_sql(sql)?;
    if statements.len() != 1 {
        return Err(());
    }
    Ok(statements.remove(0))
}

/// Parse a list of SQL strings and downcast each to a specific statement type.
///