JingsongLi commented on code in PR #197:
URL: https://github.com/apache/paimon-rust/pull/197#discussion_r3032907471
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crates/paimon/src/arrow/reader.rs:
##########
@@ -189,16 +215,74 @@ impl ArrowReader {
}
}
+/// Build the target Arrow schema from the read type (Paimon DataFields).
+fn build_target_arrow_schema(read_type: &[DataField]) ->
crate::Result<Arc<ArrowSchema>> {
Review Comment:
Good point!
##########
crates/paimon/src/arrow/mod.rs:
##########
@@ -16,5 +16,112 @@
// under the License.
mod reader;
+pub(crate) mod schema_evolution;
pub use crate::arrow::reader::ArrowReaderBuilder;
+
+use crate::spec::DataType as PaimonDataType;
+use arrow_schema::DataType as ArrowDataType;
+use arrow_schema::{Field as ArrowField, TimeUnit};
+use std::sync::Arc;
+
+/// Converts a Paimon [`DataType`](PaimonDataType) to an Arrow
[`DataType`](ArrowDataType).
+pub fn paimon_type_to_arrow(dt: &PaimonDataType) ->
crate::Result<ArrowDataType> {
Review Comment:
Good point!
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