Struct Row 

pub struct Row { /* private fields */ }

One result row.

Column values are borrowed slices of the received frame, so a row can be cheaply cloned and kept beyond its originating query.

Implementations

impl Row

pub fn columns(&self) -> &[Column]

The column metadata.

pub fn len(&self) -> usize

The number of columns.

pub fn is_empty(&self) -> bool

true if the row has no columns.

pub fn is_null(&self, index: usize) -> bool

Returns true if the column at index is NULL.

pub fn try_get<T: FromSql>(&self, name: &str) -> Result<T, Error>

Decodes the column named name.

Errors

Returns Error::ColumnNotFound if the name is unknown, Error::UnexpectedNull if the column is NULL and T is not Option, or a decode error if the bytes are malformed.

pub fn try_get_by_index<T: FromSql>(&self, index: usize) -> Result<T, Error>

Decodes the column at index.

Errors

Returns Error::ColumnNotFound if the index is out of range, Error::UnexpectedNull if the column is NULL and T is not Option, Error::Decode if the column’s type cannot be decoded as T, or a decode error if the bytes are malformed.

pub fn get_str<'a>(&'a self, name: &str) -> Result<&'a str, Error>

Returns the named column as a borrowed UTF-8 string, without allocating.

Errors

Returns Error::ColumnNotFound if the name is unknown, Error::UnexpectedNull if the column is NULL, or a decode error if the bytes are not valid UTF-8.

pub fn get_bytes<'a>(&'a self, name: &str) -> Result<Option<&'a [u8]>, Error>

Returns the named column as borrowed bytes, without allocating.

Returns None for SQL NULL.

Errors

Returns Error::ColumnNotFound if the name is unknown.

Trait Implementations

impl Clone for Row

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Row

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromRow for Row

fn from_row(row: &Row) -> Result<Self, Error>

Builds a value from a row.