alamb commented on code in PR #8365:
URL: https://github.com/apache/arrow-rs/pull/8365#discussion_r2363815639
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parquet/src/variant.rs:
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@@ -108,6 +98,202 @@
//! ```
//!
//! # Example: Reading a Parquet file with Variant column
-//! (TODO: add example)
+//!
+//! Use the [`VariantType`] extension type to find the Variant column:
+//!
+//! ```
+//! # use std::sync::Arc;
+//! # use std::path::PathBuf;
+//! # use arrow_array::{ArrayRef, RecordBatch, RecordBatchReader};
+//! # use parquet::variant::{Variant, VariantArray, VariantType};
+//! # use parquet::arrow::arrow_reader::ArrowReaderBuilder;
+//! # fn main() -> Result<(), parquet::errors::ParquetError> {
+//! # use arrow_array::StructArray;
+//! # fn file_path() -> PathBuf { // return a testing file path
+//! # PathBuf::from(arrow::util::test_util::parquet_test_data())
+//! # .join("..")
+//! # .join("shredded_variant")
+//! # .join("case-075.parquet")
+//! # }
+//! // Read the Parquet file using standard Arrow Parquet reader
+//! let file = std::fs::File::open(file_path())?;
+//! let mut reader = ArrowReaderBuilder::try_new(file)?.build()?;
+//!
+//! // You can find the Variant using the VariantType extension type
Review Comment:
clarified in
https://github.com/apache/arrow-rs/pull/8365/commits/0bea1375dbf8ace69f724679239d9773968041af
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