312 lines
8.9 KiB
Rust
312 lines
8.9 KiB
Rust
use std::io::{Read, Write};
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use std::thread;
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use std::time::Duration;
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use tokio_postgres::error::SqlState;
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use tokio_postgres::types::Type;
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use tokio_postgres::NoTls;
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use super::*;
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use crate::binary_copy::{BinaryCopyInWriter, BinaryCopyOutIter};
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use fallible_iterator::FallibleIterator;
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#[test]
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fn prepare() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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let stmt = client.prepare("SELECT 1::INT, $1::TEXT").unwrap();
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assert_eq!(stmt.params(), &[Type::TEXT]);
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assert_eq!(stmt.columns().len(), 2);
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assert_eq!(stmt.columns()[0].type_(), &Type::INT4);
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assert_eq!(stmt.columns()[1].type_(), &Type::TEXT);
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}
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#[test]
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fn query_prepared() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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let stmt = client.prepare("SELECT $1::TEXT").unwrap();
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let rows = client.query(&stmt, &[&"hello"]).unwrap();
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assert_eq!(rows.len(), 1);
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assert_eq!(rows[0].get::<_, &str>(0), "hello");
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}
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#[test]
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fn query_unprepared() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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let rows = client.query("SELECT $1::TEXT", &[&"hello"]).unwrap();
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assert_eq!(rows.len(), 1);
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assert_eq!(rows[0].get::<_, &str>(0), "hello");
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}
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#[test]
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fn transaction_commit() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id SERIAL PRIMARY KEY)")
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.unwrap();
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let mut transaction = client.transaction().unwrap();
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transaction
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.execute("INSERT INTO foo DEFAULT VALUES", &[])
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.unwrap();
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transaction.commit().unwrap();
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let rows = client.query("SELECT * FROM foo", &[]).unwrap();
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assert_eq!(rows.len(), 1);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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}
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#[test]
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fn transaction_rollback() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id SERIAL PRIMARY KEY)")
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.unwrap();
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let mut transaction = client.transaction().unwrap();
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transaction
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.execute("INSERT INTO foo DEFAULT VALUES", &[])
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.unwrap();
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transaction.rollback().unwrap();
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let rows = client.query("SELECT * FROM foo", &[]).unwrap();
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assert_eq!(rows.len(), 0);
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}
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#[test]
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fn transaction_drop() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id SERIAL PRIMARY KEY)")
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.unwrap();
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let mut transaction = client.transaction().unwrap();
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transaction
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.execute("INSERT INTO foo DEFAULT VALUES", &[])
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.unwrap();
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drop(transaction);
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let rows = client.query("SELECT * FROM foo", &[]).unwrap();
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assert_eq!(rows.len(), 0);
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}
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#[test]
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fn nested_transactions() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.batch_execute("CREATE TEMPORARY TABLE foo (id INT PRIMARY KEY)")
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.unwrap();
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let mut transaction = client.transaction().unwrap();
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transaction
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.execute("INSERT INTO foo (id) VALUES (1)", &[])
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.unwrap();
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let mut transaction2 = transaction.transaction().unwrap();
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transaction2
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.execute("INSERT INTO foo (id) VALUES (2)", &[])
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.unwrap();
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transaction2.rollback().unwrap();
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let rows = transaction
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.query("SELECT id FROM foo ORDER BY id", &[])
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.unwrap();
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assert_eq!(rows.len(), 1);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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let mut transaction3 = transaction.transaction().unwrap();
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transaction3
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.execute("INSERT INTO foo (id) VALUES(3)", &[])
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.unwrap();
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let mut transaction4 = transaction3.transaction().unwrap();
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transaction4
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.execute("INSERT INTO foo (id) VALUES(4)", &[])
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.unwrap();
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transaction4.commit().unwrap();
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transaction3.commit().unwrap();
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transaction.commit().unwrap();
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let rows = client.query("SELECT id FROM foo ORDER BY id", &[]).unwrap();
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assert_eq!(rows.len(), 3);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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assert_eq!(rows[1].get::<_, i32>(0), 3);
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assert_eq!(rows[2].get::<_, i32>(0), 4);
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}
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#[test]
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fn copy_in() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id INT, name TEXT)")
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.unwrap();
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let mut writer = client.copy_in("COPY foo FROM stdin").unwrap();
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writer.write_all(b"1\tsteven\n2\ttimothy").unwrap();
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writer.finish().unwrap();
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let rows = client
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.query("SELECT id, name FROM foo ORDER BY id", &[])
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.unwrap();
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assert_eq!(rows.len(), 2);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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assert_eq!(rows[0].get::<_, &str>(1), "steven");
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assert_eq!(rows[1].get::<_, i32>(0), 2);
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assert_eq!(rows[1].get::<_, &str>(1), "timothy");
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}
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#[test]
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fn copy_in_abort() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id INT, name TEXT)")
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.unwrap();
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let mut writer = client.copy_in("COPY foo FROM stdin").unwrap();
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writer.write_all(b"1\tsteven\n2\ttimothy").unwrap();
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drop(writer);
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let rows = client
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.query("SELECT id, name FROM foo ORDER BY id", &[])
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.unwrap();
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assert_eq!(rows.len(), 0);
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}
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#[test]
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fn binary_copy_in() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query("CREATE TEMPORARY TABLE foo (id INT, name TEXT)")
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.unwrap();
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let writer = client.copy_in("COPY foo FROM stdin BINARY").unwrap();
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let mut writer = BinaryCopyInWriter::new(writer, &[Type::INT4, Type::TEXT]);
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writer.write(&[&1i32, &"steven"]).unwrap();
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writer.write(&[&2i32, &"timothy"]).unwrap();
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writer.finish().unwrap();
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let rows = client
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.query("SELECT id, name FROM foo ORDER BY id", &[])
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.unwrap();
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assert_eq!(rows.len(), 2);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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assert_eq!(rows[0].get::<_, &str>(1), "steven");
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assert_eq!(rows[1].get::<_, i32>(0), 2);
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assert_eq!(rows[1].get::<_, &str>(1), "timothy");
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}
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#[test]
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fn copy_out() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query(
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"CREATE TEMPORARY TABLE foo (id INT, name TEXT);
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INSERT INTO foo (id, name) VALUES (1, 'steven'), (2, 'timothy');",
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)
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.unwrap();
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let mut reader = client.copy_out("COPY foo (id, name) TO STDOUT").unwrap();
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let mut s = String::new();
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reader.read_to_string(&mut s).unwrap();
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drop(reader);
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assert_eq!(s, "1\tsteven\n2\ttimothy\n");
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client.simple_query("SELECT 1").unwrap();
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}
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#[test]
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fn binary_copy_out() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query(
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"CREATE TEMPORARY TABLE foo (id INT, name TEXT);
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INSERT INTO foo (id, name) VALUES (1, 'steven'), (2, 'timothy');",
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)
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.unwrap();
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let reader = client
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.copy_out("COPY foo (id, name) TO STDOUT BINARY")
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.unwrap();
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let rows = BinaryCopyOutIter::new(reader, &[Type::INT4, Type::TEXT])
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.collect::<Vec<_>>()
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.unwrap();
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assert_eq!(rows.len(), 2);
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assert_eq!(rows[0].get::<i32>(0), 1);
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assert_eq!(rows[0].get::<&str>(1), "steven");
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assert_eq!(rows[1].get::<i32>(0), 2);
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assert_eq!(rows[1].get::<&str>(1), "timothy");
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client.simple_query("SELECT 1").unwrap();
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}
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#[test]
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fn portal() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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client
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.simple_query(
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"CREATE TEMPORARY TABLE foo (id INT);
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INSERT INTO foo (id) VALUES (1), (2), (3);",
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)
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.unwrap();
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let mut transaction = client.transaction().unwrap();
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let portal = transaction
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.bind("SELECT * FROM foo ORDER BY id", &[])
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.unwrap();
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let rows = transaction.query_portal(&portal, 2).unwrap();
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assert_eq!(rows.len(), 2);
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assert_eq!(rows[0].get::<_, i32>(0), 1);
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assert_eq!(rows[1].get::<_, i32>(0), 2);
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let rows = transaction.query_portal(&portal, 2).unwrap();
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assert_eq!(rows.len(), 1);
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assert_eq!(rows[0].get::<_, i32>(0), 3);
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}
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#[test]
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fn cancel_query() {
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let mut client = Client::connect("host=localhost port=5433 user=postgres", NoTls).unwrap();
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let cancel_token = client.cancel_token();
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let cancel_thread = thread::spawn(move || {
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thread::sleep(Duration::from_millis(100));
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cancel_token.cancel_query(NoTls).unwrap();
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});
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match client.batch_execute("SELECT pg_sleep(100)") {
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Err(e) if e.code() == Some(&SqlState::QUERY_CANCELED) => {}
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t => panic!("unexpected return: {:?}", t),
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}
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cancel_thread.join().unwrap();
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}
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