Function parse_show_command

nodedb/src/control/server/pgwire/session/params.rs:201–215

Parse a SHOW command: `SHOW ` or `SHOW ALL`. Returns the parameter name, or "all" for SHOW ALL.

(sql: &str)

///
/// Returns the parameter name, or "all" for SHOW ALL.
pub fn parse_show_command(sql: &str) -> Option<String> {
    let trimmed = sql.trim();
    let upper = trimmed.to_uppercase();

    if !upper.starts_with("SHOW ") {
        return None;
    }

    let param = trimmed[5..].trim().to_lowercase();
    if param.is_empty() {
        return None;
    }

    Some(param)
}

#[cfg(test)]
mod tests {