connection)=tokio_postgres::connect("postgres://user:password@localhost/dbname",NoTls).await?
问tokio_postgres中的Rust和PostgreSQLEN在使用 PostgreSQL 时，使用类似 SUM(vals) 或者 AVG(vals) 是...
例如 std::sync::Mutex, 会阻塞当前的 tokio-worker 线程, 这个 worker 无法再执行其他 task. 所以代...
connection)=tokio_postgres::connect("postgres://user:password@localhost/dbname",NoTls).await?
use batch_copy::{Configuration, Handler, BatchCopyRow}; use tokio_postgres::types::{ToSql, Type}; #[derive(Debug, Clone)] struct RequestMetric { url: String, latency_ms: i64, } // Generic types of BatchCopyHandler must implement BatchCopyRow // Here we map our struct fields to ...
{pubdb_connection:Pool<Postgres>,}implUserRepository{pubfnnew(connection:Pool<Postgres>)->UserRepository{UserRepository{db_connection:connection,}}}#[async_trait]implAbstractUserRepositoryforUserRepository{asyncfnget_user_by_username(&self,username:&str)->Result<User,Error>{letresult = sqlx::query_...
虽然在我的博客上还有几年前写的一些 SpringMVC 相关源码分析，其中关于 Spring 容器如何与 Servlet 容器...
use tokio_postgres::Client; use tokio_postgres::NoTls; use tokio::runtime::Runtime; async fn connect_and_query() -> Result<(), Box<dyn std::error::Error>> { let (client, connection) = tokio_postgres::connect("postgres://user:password@localhost/dbname", NoTls).await?; tokio::spawn...
letdriver:Arc<dynrdbc::Driver>=Arc::new(PostgresDriver::new());letmutconn = driver.connect("postgres://user:password@127.0.0.1:5433")?;letmutstmt = conn.prepare("SELECT a FROM test")?;letmutrs = stmt.execute_query(&vec![])?;whilers.next(){println!("{:?}",rs.get_string(1)?