Enum TextValue 

pub enum TextValue {
    Null,
    Text(String),
}

A single column’s text-format value as received from the backend.

Held as a Cow<str> view into the row bytes; callers typically turn it into a typed Rust value via the as_<type> helpers below.

Variants

Null

The column is SQL NULL.

Text(String)

Raw UTF-8 bytes as sent by the server.

Implementations

impl TextValue

pub fn is_null(&self) -> bool

Return true if this value is SQL NULL.

pub fn as_str(&self) -> Option<&str>

Borrow the underlying string if not NULL.

pub fn into_string(self) -> Option<String>

Consume and return the inner String, or None for NULL.

pub fn as_bool(&self, column: &str) -> BackendResult<Option<bool>>

Decode as bool. PostgreSQL text format is "t" or "f".

pub fn as_i64(&self, column: &str) -> BackendResult<Option<i64>>

Decode as i64 (covers INT4 and INT8 at the wire level — text format is the same).

pub fn as_f64(&self, column: &str) -> BackendResult<Option<f64>>

Decode as f64 (FLOAT8 / double precision).

pub fn as_timestamptz( &self, column: &str, ) -> BackendResult<Option<DateTime<FixedOffset>>>

Decode as DateTime<FixedOffset> (TIMESTAMPTZ). PG text format with a timezone offset: 2026-04-24 12:34:56.789+00.

pub fn as_pg_lsn(&self, column: &str) -> BackendResult<Option<String>>

Decode as a textual pg_lsn (e.g. "0/16B3758"). We leave LSN arithmetic to callers — string form is what pg_last_wal_*_lsn() returns in text format, and the natural lex order on these strings matches WAL ordering for positions in the same timeline.

pub fn as_numeric(&self, column: &str) -> BackendResult<Option<String>>

Decode as NUMERIC — text is PG’s canonical form (e.g. “3.1415”). We return the raw string; callers that need arithmetic can route to rust_decimal or parse further.

Trait Implementations

impl Clone for TextValue

fn clone(&self) -> TextValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TextValue

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

Formats the value using the given formatter.

impl PartialEq for TextValue

fn eq(&self, other: &TextValue) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TextValue