Struct Opts 

pub struct Opts {

    pub host: String,
    pub port: u16,
    pub socket: Option<String>,
    pub user: String,
    pub database: Option<String>,
    pub password: Option<String>,
    pub application_name: Option<String>,
    pub ssl_mode: SslMode,
    pub params: Vec<(String, String)>,
    pub prefer_unix_socket: bool,
    pub pool_max_idle_conn: usize,
    pub pool_max_concurrency: Option<usize>,
    pub buffer_pool: Arc<BufferPool>,
}

Connection options for PostgreSQL.

Fields

host: String

Hostname or IP address.

Default: ""

port: u16

Port number for the PostgreSQL server.

Default: 5432

socket: Option<String>

Unix socket path.

Default: None

user: String

Username for authentication.

Default: ""

database: Option<String>

Database name to use.

Default: None

password: Option<String>

Password for authentication.

Default: None

application_name: Option<String>

Application name to report to the server.

Default: None

ssl_mode: SslMode

SSL connection mode.

Default: SslMode::Prefer

params: Vec<(String, String)>

Additional connection parameters.

Default: []

prefer_unix_socket: bool

When connected via TCP to loopback, upgrade to Unix socket for better performance.

Default: true

pool_max_idle_conn: usize

Maximum number of idle connections in the pool.

Default: 100

pool_max_concurrency: Option<usize>

Maximum number of concurrent connections (None = unlimited).

Default: None

buffer_pool: Arc<BufferPool>

Buffer pool for reusing buffers across connections.

Default: GLOBAL_BUFFER_POOL

Trait Implementations

impl Clone for Opts

fn clone(&self) -> Opts

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Opts

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

Formats the value using the given formatter.

impl Default for Opts

fn default() -> Self

Returns the “default value” for a type.

impl TryFrom<&Url> for Opts

fn try_from(url: &Url) -> Result<Self, Self::Error>

Parse a PostgreSQL connection URL.

Format: postgres://[user[:password]@]host[:port][/database][?param1=value1&param2=value2&..]

Supported query parameters:

• sslmode: disable, prefer, require
• application_name: application name
• prefer_unix_socket: true/True/1/yes/on or false/False/0/no/off
• pool_max_idle_conn: maximum idle connections (positive integer)
• pool_max_concurrency: maximum concurrent connections (positive integer)

type Error = Error

The type returned in the event of a conversion error.

impl TryFrom<&str> for Opts

type Error = Error

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<Self, Self::Error>

Performs the conversion.