luoyuxia commented on code in PR #181: URL: https://github.com/apache/fluss-rust/pull/181#discussion_r2708970890
########## crates/examples/src/example_kv_table.rs: ########## @@ -0,0 +1,121 @@ +// Licensed to the Apache Software Foundation (ASF) under one +// or more contributor license agreements. See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership. The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +use clap::Parser; +use fluss::client::{FlussConnection, TableWriter, UpsertWriter}; +use fluss::config::Config; +use fluss::error::Result; +use fluss::metadata::{DataTypes, Schema, TableDescriptor, TablePath}; +use fluss::row::{GenericRow, InternalRow}; + +#[tokio::main] +#[allow(dead_code)] +pub async fn main() -> Result<()> { + let mut config = Config::parse(); + config.bootstrap_server = Some("127.0.0.1:9123".to_string()); + + let conn = FlussConnection::new(config).await?; + + let table_descriptor = TableDescriptor::builder() + .schema( + Schema::builder() + .column("id", DataTypes::int()) + .column("name", DataTypes::string()) + .column("age", DataTypes::bigint()) + .primary_key(vec!["id".to_string()]) + .build()?, + ) + .build()?; + + let table_path = TablePath::new("fluss".to_owned(), "rust_upsert_lookup_example".to_owned()); + + let admin = conn.get_admin().await?; + admin + .create_table(&table_path, &table_descriptor, true) + .await?; + println!( + "Created KV Table:\n {}\n", + admin.get_table(&table_path).await? + ); + + let table = conn.get_table(&table_path).await?; + let table_upsert = table.new_upsert()?; + let mut upsert_writer = table_upsert.create_writer()?; + + println!("\n=== Upserting ==="); + for (id, name, age) in [(1, "Verso", 32i64), (2, "Noco", 25), (3, "Esquie", 35)] { + let mut row = GenericRow::new(); + row.set_field(0, id); + row.set_field(1, name); + row.set_field(2, age); + upsert_writer.upsert(&row).await?; + println!("Upserted: {row:?}"); + } + upsert_writer.flush().await?; + + println!("\n=== Looking up ==="); + let mut lookuper = table.new_lookup()?.create_lookuper()?; + + for id in 1..=2 { + let result = lookuper.lookup(&make_key(id)).await?; + let row = result.get_single_row()?.unwrap(); + println!( + "Found id={id}: name={}, age={}", + row.get_string(1), + row.get_long(2) + ); + } + + println!("\n=== Updating ==="); + let mut row = GenericRow::new(); + row.set_field(0, 1); + row.set_field(1, "Verso"); + row.set_field(2, 33i64); + upsert_writer.upsert(&row).await?; + upsert_writer.flush().await?; + println!("Updated: {row:?}"); + + let result = lookuper.lookup(&make_key(1)).await?; + let row = result.get_single_row()?.unwrap(); + println!( + "Verified update: name={}, age={}", + row.get_string(1), + row.get_long(2) + ); + + println!("\n=== Deleting ==="); + let mut row = GenericRow::new(); Review Comment: Yes, I think we can break that off as a separate issue. Could you please help create the issue? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
