Enum ReadWrite

pub enum ReadWrite {
    Read,
    Write,
    Unknown,
}

Indicates if the statement is a read or a write. Read statements are sent to a replica, if one is configured. Write statements are sent to the primary.

Example

use pgdog_plugin::ReadWrite;

// The statement should go to a replica.
let read = ReadWrite::Read;

// The statement should go the primary.
let write = ReadWrite::Write;

// Skip and let PgDog decide.
let unknown = ReadWrite::Unknown;

Variants

Read

Send the statement to a replica, if any are configured.

Write

Send the statement to the primary.

Unknown

Plugin doesn’t know if the statement is a read or write. This let’s PgDog decide. Use this if you don’t want to make this decision in the plugin.

Trait Implementations

impl Clone for ReadWrite

fn clone(&self) -> ReadWrite

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReadWrite

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

Formats the value using the given formatter.

impl From<ReadWrite> for u8

fn from(value: ReadWrite) -> Self

Converts to this type from the input type.

impl PartialEq for ReadWrite

fn eq(&self, other: &ReadWrite) -> 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 TryFrom<u8> for ReadWrite

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: u8) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for ReadWrite

impl Eq for ReadWrite

impl StructuralPartialEq for ReadWrite