Nov 1, 2024 · Sep 20, 2025 · Sep 20, 2025 · Sep 20, 2025
diff --git a/tokio-postgres/src/error/mod.rs b/tokio-postgres/src/error/mod.rs
    },
 }

 #[derive(Debug, PartialEq)]
 enum Kind {
 /// Error kind returned by the database.
 #[allow(missing_docs)]
 #[derive(Debug, PartialEq, Clone)]
 #[non_exhaustive]
 pub enum Kind {
    Io,
    UnexpectedMessage,
    Tls,
    ToSql(usize),
    FromSql(usize),
    /// A column was fetched from the row which wasn't returned by the database.
    /// This usually indicates the column wasn't included in the query.
    Column(String),
    Parameters(usize, usize),
    /// The number of parameters expected by the query doesn't match the number
    /// of parameters passed when executing the prepared statement.
    Parameters {
        expected: usize,
        found: usize,
    },
    Closed,
    Db,
    Parse,
        self.as_db_error().map(DbError::code)
    }

    /// Returns the kind of error.
    pub fn kind(&self) -> &Kind {
        &self.0.kind
    }

    fn new(kind: Kind, cause: Option<Box<dyn error::Error + Sync + Send>>) -> Error {
        Error(Box::new(ErrorInner { kind, cause }))
    }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -337,15 +337,25 @@ pub enum ErrorPosition {
		},
		}

		#[derive(Debug, PartialEq)]
		enum Kind {
		/// Error kind returned by the database.
		#[allow(missing_docs)]
		#[derive(Debug, PartialEq, Clone)]
		#[non_exhaustive]
		pub enum Kind {
		Io,
		UnexpectedMessage,
		Tls,
		ToSql(usize),
		FromSql(usize),
Comment on lines 347 to 348 Copy link Member paolobarboliniSep 20, 2025• edited Loading Choose a reason for hiding this comment The reason will be displayed to describe this comment to others.Learn more. These`usize`s are very ambiguous. Is this the index of the column? We should document it. EDIT: or even convert it into something along the lines of: FromSql{column_index: usize,}
		/// A column was fetched from the row which wasn't returned by the database.
		/// This usually indicates the column wasn't included in the query.
		Column(String),
		Parameters(usize, usize),
		/// The number of parameters expected by the query doesn't match the number
		/// of parameters passed when executing the prepared statement.
		Parameters {
		expected: usize,
		found: usize,
		},
		Closed,
		Db,
		Parse,
Expand DownExpand Up		@@ -438,6 +448,11 @@ impl Error {
		self.as_db_error().map(DbError::code)
		}

		/// Returns the kind of error.
		pub fn kind(&self) -> &Kind {
		&self.0.kind
		}

		fn new(kind: Kind, cause: Option<Box<dyn error::Error + Sync + Send>>) -> Error {
		Error(Box::new(ErrorInner { kind, cause }))
		}
Expand Down