ganesh-skumar commented on code in PR #648: URL: https://github.com/apache/paimon-rust/pull/648#discussion_r3764269753
########## crates/paimon/examples/create_table.rs: ########## @@ -0,0 +1,104 @@ +// 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 std::collections::HashMap; +use std::error::Error; +use std::sync::Arc; + +use arrow_array::{Int32Array, RecordBatch, StringArray}; +use arrow_schema::{DataType as ArrowDataType, Field, Schema as ArrowSchema}; +use paimon::catalog::Identifier; +use paimon::spec::{DataType, IntType, Schema, VarCharType}; +use paimon::{Catalog, CatalogFactory, CatalogOptions, Options}; + +// This example creates a paimon table and inserts test data +// set the catalog path and run example using: +// cargo run --package paimon --example create_table +#[tokio::main] +async fn main() -> Result<(), Box<dyn Error>> { + // Open local catalog + let catalog = create_catelog().await?; + + // Create new database + catalog + .create_database("my_db", false, HashMap::new()) + .await?; + + // Define table schema and its data types + let schema = Schema::builder() + .column("id", DataType::Int(IntType::new())) + .column("name", DataType::VarChar(VarCharType::string_type())) + .column("city", DataType::VarChar(VarCharType::string_type())) + .column("age", DataType::Int(IntType::new())) + .column("score", DataType::Int(IntType::new())) + .build()?; + + let identifier = Identifier::new("my_db", "users"); + + // create table + catalog.create_table(&identifier, schema, false).await?; + + let table = catalog.get_table(&identifier).await?; + + let builder = table.new_write_builder(); + let txn = builder.new_commit(); + + let mut writer = builder.new_write()?; + + let arrow_schema = Arc::new(ArrowSchema::new(vec![ + Field::new("id", ArrowDataType::Int32, false), + Field::new("name", ArrowDataType::Utf8, false), + Field::new("city", ArrowDataType::Utf8, false), + Field::new("age", ArrowDataType::Int32, false), + Field::new("score", ArrowDataType::Int32, false), + ])); + + // sample data + let batch = RecordBatch::try_new( + arrow_schema, + vec![ + Arc::new(Int32Array::from(vec![1, 2, 3, 4, 5])), + Arc::new(StringArray::from(vec![ + "Alice", "Bob", "Paul", "Diana", "Ethan", + ])), + Arc::new(StringArray::from(vec![ + "New York", + "San Francisco", + "Bengaluru", + "Amsterdam", + "Berlin", + ])), + Arc::new(Int32Array::from(vec![28, 34, 22, 31, 27])), + Arc::new(Int32Array::from(vec![95, 82, 91, 88, 76])), + ], + )?; + + writer.write_arrow_batch(&batch).await?; + + let msg = writer.prepare_commit().await?; + + txn.commit(msg).await?; + + Ok(()) +} + +pub async fn create_catelog() -> Result<Arc<dyn Catalog>, Box<dyn Error>> { + let mut options = Options::new(); + options.set(CatalogOptions::WAREHOUSE, "/path-to/testdata"); Review Comment: updated to pass path via cli -- 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]
