Crate postgres

Expand description

A synchronous client for the PostgreSQL database.

Example

use postgres::{Client, NoTls};

let mut client = Client::connect("host=localhost user=postgres", NoTls)?;

client.batch_execute("
    CREATE TABLE person (
        id      SERIAL PRIMARY KEY,
        name    TEXT NOT NULL,
        data    BYTEA
    )
")?;

let name = "Ferris";
let data = None::<&[u8]>;
client.execute(
    "INSERT INTO person (name, data) VALUES ($1, $2)",
    &[&name, &data],
)?;

for row in client.query("SELECT id, name, data FROM person", &[])? {
    let id: i32 = row.get(0);
    let name: &str = row.get(1);
    let data: Option<&[u8]> = row.get(2);

    println!("found person: {} {} {:?}", id, name, data);
}

This crate is a lightweight wrapper over tokio-postgres. The postgres::Client is simply a wrapper around a tokio_postgres::Client along side a tokio Runtime. The client simply blocks on the futures provided by the async client.

SSL/TLS support

TLS support is implemented via external libraries. Client::connect and Config::connect take a TLS implementation as an argument. The NoTls type in this crate can be used when TLS is not required. Otherwise, the postgres-openssl and postgres-native-tls crates provide implementations backed by the openssl and native-tls crates, respectively.

Features

The following features can be enabled from Cargo.toml:

Feature	Description	Extra dependencies	Default
`with-bit-vec-0_6`	Enable support for the `bit-vec` crate.	bit-vec 0.6	no
`with-chrono-0_4`	Enable support for the `chrono` crate.	chrono 0.4	no
`with-eui48-0_4`	Enable support for the 0.4 version of the `eui48` crate.	eui48 0.4	no
`with-eui48-1`	Enable support for the 1.0 version of the `eui48` crate.	eui48 1.0	no
`with-geo-types-0_6`	Enable support for the 0.6 version of the `geo-types` crate.	geo-types 0.6	no
`with-geo-types-0_7`	Enable support for the 0.7 version of the `geo-types` crate.	geo-types 0.7	no
`with-serde_json-1`	Enable support for the `serde_json` crate.	serde_json 1.0	no
`with-uuid-0_8`	Enable support for the `uuid` crate.	uuid 0.8	no
`with-uuid-1`	Enable support for the `uuid` crate.	uuid 1.0	no
`with-time-0_2`	Enable support for the 0.2 version of the `time` crate.	time 0.2	no
`with-time-0_3`	Enable support for the 0.3 version of the `time` crate.	time 0.3	no