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Merge pull request #16182 from taosdata/fix/remove-rust-bindings
fix: remove rust-bindings, use official connector instead
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/target | ||
Cargo.lock |
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[package] | ||
name = "rust" | ||
version = "0.1.0" | ||
edition = "2021" | ||
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html | ||
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[dependencies] | ||
taos = "*" | ||
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[dev-dependencies] | ||
chrono = "0.4" | ||
itertools = "0.10.3" | ||
pretty_env_logger = "0.4.0" | ||
serde = { version = "1", features = ["derive"] } | ||
serde_json = "1" | ||
tokio = { version = "1", features = ["full"] } | ||
anyhow = "1" |
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use anyhow::Result; | ||
use serde::Deserialize; | ||
use taos::*; | ||
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#[tokio::main] | ||
async fn main() -> Result<()> { | ||
let taos = TaosBuilder::from_dsn("taos://")?.build()?; | ||
taos.exec_many([ | ||
"drop database if exists test", | ||
"create database test keep 36500", | ||
"use test", | ||
"create table tb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, | ||
c6 tinyint unsigned, c7 smallint unsigned, c8 int unsigned, c9 bigint unsigned, | ||
c10 float, c11 double, c12 varchar(100), c13 nchar(100)) tags(t1 varchar(100))", | ||
]) | ||
.await?; | ||
let mut stmt = Stmt::init(&taos)?; | ||
stmt.prepare( | ||
"insert into ? using tb1 tags(?) values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)", | ||
)?; | ||
stmt.set_tbname("d0")?; | ||
stmt.set_tags(&[Value::VarChar("涛思".to_string())])?; | ||
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let params = vec![ | ||
ColumnView::from_millis_timestamp(vec![164000000000]), | ||
ColumnView::from_bools(vec![true]), | ||
ColumnView::from_tiny_ints(vec![i8::MAX]), | ||
ColumnView::from_small_ints(vec![i16::MAX]), | ||
ColumnView::from_ints(vec![i32::MAX]), | ||
ColumnView::from_big_ints(vec![i64::MAX]), | ||
ColumnView::from_unsigned_tiny_ints(vec![u8::MAX]), | ||
ColumnView::from_unsigned_small_ints(vec![u16::MAX]), | ||
ColumnView::from_unsigned_ints(vec![u32::MAX]), | ||
ColumnView::from_unsigned_big_ints(vec![u64::MAX]), | ||
ColumnView::from_floats(vec![f32::MAX]), | ||
ColumnView::from_doubles(vec![f64::MAX]), | ||
ColumnView::from_varchar(vec!["ABC"]), | ||
ColumnView::from_nchar(vec!["涛思数据"]), | ||
]; | ||
let rows = stmt.bind(¶ms)?.add_batch()?.execute()?; | ||
assert_eq!(rows, 1); | ||
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#[derive(Debug, Deserialize)] | ||
#[allow(dead_code)] | ||
struct Row { | ||
ts: String, | ||
c1: bool, | ||
c2: i8, | ||
c3: i16, | ||
c4: i32, | ||
c5: i64, | ||
c6: u8, | ||
c7: u16, | ||
c8: u32, | ||
c9: u64, | ||
c10: Option<f32>, | ||
c11: f64, | ||
c12: String, | ||
c13: String, | ||
t1: serde_json::Value, | ||
} | ||
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let rows: Vec<Row> = taos | ||
.query("select * from tb1") | ||
.await? | ||
.deserialize() | ||
.try_collect() | ||
.await?; | ||
let row = &rows[0]; | ||
dbg!(&row); | ||
assert_eq!(row.c5, i64::MAX); | ||
assert_eq!(row.c8, u32::MAX); | ||
assert_eq!(row.c9, u64::MAX); | ||
assert_eq!(row.c10.unwrap(), f32::MAX); | ||
// assert_eq!(row.c11, f64::MAX); | ||
assert_eq!(row.c12, "ABC"); | ||
assert_eq!(row.c13, "涛思数据"); | ||
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Ok(()) | ||
} |
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use anyhow::Result; | ||
use serde::Deserialize; | ||
use taos::*; | ||
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#[tokio::main] | ||
async fn main() -> Result<()> { | ||
let taos = TaosBuilder::from_dsn("taos://")?.build()?; | ||
taos.exec_many([ | ||
"drop database if exists test_bindable", | ||
"create database test_bindable keep 36500", | ||
"use test_bindable", | ||
"create table tb1 (ts timestamp, c1 bool, c2 tinyint, c3 smallint, c4 int, c5 bigint, | ||
c6 tinyint unsigned, c7 smallint unsigned, c8 int unsigned, c9 bigint unsigned, | ||
c10 float, c11 double, c12 varchar(100), c13 nchar(100))", | ||
]) | ||
.await?; | ||
let mut stmt = Stmt::init(&taos)?; | ||
stmt.prepare("insert into tb1 values(?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)")?; | ||
let params = vec![ | ||
ColumnView::from_millis_timestamp(vec![0]), | ||
ColumnView::from_bools(vec![true]), | ||
ColumnView::from_tiny_ints(vec![i8::MAX]), | ||
ColumnView::from_small_ints(vec![i16::MAX]), | ||
ColumnView::from_ints(vec![i32::MAX]), | ||
ColumnView::from_big_ints(vec![i64::MAX]), | ||
ColumnView::from_unsigned_tiny_ints(vec![u8::MAX]), | ||
ColumnView::from_unsigned_small_ints(vec![u16::MAX]), | ||
ColumnView::from_unsigned_ints(vec![u32::MAX]), | ||
ColumnView::from_unsigned_big_ints(vec![u64::MAX]), | ||
ColumnView::from_floats(vec![f32::MAX]), | ||
ColumnView::from_doubles(vec![f64::MAX]), | ||
ColumnView::from_varchar(vec!["ABC"]), | ||
ColumnView::from_nchar(vec!["涛思数据"]), | ||
]; | ||
let rows = stmt.bind(¶ms)?.add_batch()?.execute()?; | ||
assert_eq!(rows, 1); | ||
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#[derive(Debug, Deserialize)] | ||
#[allow(dead_code)] | ||
struct Row { | ||
ts: String, | ||
c1: bool, | ||
c2: i8, | ||
c3: i16, | ||
c4: i32, | ||
c5: i64, | ||
c6: u8, | ||
c7: u16, | ||
c8: u32, | ||
c9: u64, | ||
c10: Option<f32>, | ||
c11: f64, | ||
c12: String, | ||
c13: String, | ||
} | ||
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let rows: Vec<Row> = taos | ||
.query("select * from tb1") | ||
.await? | ||
.deserialize() | ||
.try_collect() | ||
.await?; | ||
let row = &rows[0]; | ||
dbg!(&row); | ||
assert_eq!(row.c5, i64::MAX); | ||
assert_eq!(row.c8, u32::MAX); | ||
assert_eq!(row.c9, u64::MAX); | ||
assert_eq!(row.c10.unwrap(), f32::MAX); | ||
// assert_eq!(row.c11, f64::MAX); | ||
assert_eq!(row.c12, "ABC"); | ||
assert_eq!(row.c13, "涛思数据"); | ||
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Ok(()) | ||
} |
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use std::time::Duration; | ||
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use chrono::{DateTime, Local}; | ||
use taos::*; | ||
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#[tokio::main] | ||
async fn main() -> anyhow::Result<()> { | ||
let dsn = "taos://"; | ||
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let opts = PoolBuilder::new() | ||
.max_size(5000) // max connections | ||
.max_lifetime(Some(Duration::from_secs(60 * 60))) // lifetime of each connection | ||
.min_idle(Some(1000)) // minimal idle connections | ||
.connection_timeout(Duration::from_secs(2)); | ||
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let pool = TaosBuilder::from_dsn(dsn)?.with_pool_builder(opts)?; | ||
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let taos = pool.get()?; | ||
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let db = "query"; | ||
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// prepare database | ||
taos.exec_many([ | ||
format!("DROP DATABASE IF EXISTS `{db}`"), | ||
format!("CREATE DATABASE `{db}`"), | ||
format!("USE `{db}`"), | ||
]) | ||
.await?; | ||
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let inserted = taos.exec_many([ | ||
// create super table | ||
"CREATE TABLE `meters` (`ts` TIMESTAMP, `current` FLOAT, `voltage` INT, `phase` FLOAT) TAGS (`groupid` INT, `location` BINARY(16))", | ||
// create child table | ||
"CREATE TABLE `d0` USING `meters` TAGS(0, 'Los Angles')", | ||
// insert into child table | ||
"INSERT INTO `d0` values(now - 10s, 10, 116, 0.32)", | ||
// insert with NULL values | ||
"INSERT INTO `d0` values(now - 8s, NULL, NULL, NULL)", | ||
// insert and automatically create table with tags if not exists | ||
"INSERT INTO `d1` USING `meters` TAGS(1, 'San Francisco') values(now - 9s, 10.1, 119, 0.33)", | ||
// insert many records in a single sql | ||
"INSERT INTO `d1` values (now-8s, 10, 120, 0.33) (now - 6s, 10, 119, 0.34) (now - 4s, 11.2, 118, 0.322)", | ||
]).await?; | ||
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assert_eq!(inserted, 6); | ||
loop { | ||
let count: usize = taos | ||
.query_one("select count(*) from `meters`") | ||
.await? | ||
.unwrap_or_default(); | ||
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if count >= 6 { | ||
break; | ||
} else { | ||
println!("waiting for data"); | ||
} | ||
} | ||
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let mut result = taos.query("select tbname, * from `meters`").await?; | ||
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for field in result.fields() { | ||
println!("got field: {}", field.name()); | ||
} | ||
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// Query option 1, use rows stream. | ||
let mut rows = result.rows(); | ||
let mut nrows = 0; | ||
while let Some(row) = rows.try_next().await? { | ||
for (col, (name, value)) in row.enumerate() { | ||
println!( | ||
"[{}] got value in col {} (named `{:>8}`): {}", | ||
nrows, col, name, value | ||
); | ||
} | ||
nrows += 1; | ||
} | ||
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// Query options 2, use deserialization with serde. | ||
#[derive(Debug, serde::Deserialize)] | ||
#[allow(dead_code)] | ||
struct Record { | ||
tbname: String, | ||
// deserialize timestamp to chrono::DateTime<Local> | ||
ts: DateTime<Local>, | ||
// float to f32 | ||
current: Option<f32>, | ||
// int to i32 | ||
voltage: Option<i32>, | ||
phase: Option<f32>, | ||
groupid: i32, | ||
// binary/varchar to String | ||
location: String, | ||
} | ||
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let records: Vec<Record> = taos | ||
.query("select tbname, * from `meters`") | ||
.await? | ||
.deserialize() | ||
.try_collect() | ||
.await?; | ||
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dbg!(result.summary()); | ||
assert_eq!(records.len(), 6); | ||
dbg!(records); | ||
Ok(()) | ||
} |
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