cht42 commented on code in PR #19865:
URL: https://github.com/apache/datafusion/pull/19865#discussion_r2703677478
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datafusion/spark/src/lib.rs:
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@@ -93,10 +93,42 @@
//! ```
//!
//![`Expr`]: datafusion_expr::Expr
+//!
+//! # Example: enabling Apache Spark features with SessionStateBuilder
+//!
+//! The recommended way to enable Apache Spark compatibility is to use the
+//! `SessionStateBuilderSpark` extension trait. This registers all
+//! Apache Spark functions (scalar, aggregate, window, and table) as well as
the Apache Spark
+//! expression planner.
+//!
+//! Enable the `core` feature in your `Cargo.toml`:
+//! ```toml
+//! datafusion-spark = { version = "X", features = ["core"] }
+//! ```
+//!
+//! Then use the extension trait:
+//! ```ignore
Review Comment:
fixed it
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