use std::path::PathBuf;
use duckdb::{
Connection, Result,
arrow::{record_batch::RecordBatch, util::pretty::print_batches},
};
fn main() -> Result<()> {
let db = Connection::open_in_memory()?;
db.execute_batch("INSTALL parquet; LOAD parquet;")?;
let parquet_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("examples/int32_decimal.parquet");
let rbs: Vec<RecordBatch> = db
.prepare("SELECT * FROM read_parquet(?)")?
.query_arrow([parquet_path.to_string_lossy()])?
.collect();
assert!(print_batches(&rbs).is_ok());
Ok(())
}