JingsongLi commented on code in PR #197:
URL: https://github.com/apache/paimon-rust/pull/197#discussion_r3032241259
##########
crates/paimon/src/arrow/mod.rs:
##########
@@ -16,5 +16,113 @@
// 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> {
+ Ok(match dt {
+ PaimonDataType::Boolean(_) => ArrowDataType::Boolean,
+ PaimonDataType::TinyInt(_) => ArrowDataType::Int8,
+ PaimonDataType::SmallInt(_) => ArrowDataType::Int16,
+ PaimonDataType::Int(_) => ArrowDataType::Int32,
+ PaimonDataType::BigInt(_) => ArrowDataType::Int64,
+ PaimonDataType::Float(_) => ArrowDataType::Float32,
+ PaimonDataType::Double(_) => ArrowDataType::Float64,
+ PaimonDataType::VarChar(_) | PaimonDataType::Char(_) =>
ArrowDataType::Utf8,
+ PaimonDataType::Binary(_) | PaimonDataType::VarBinary(_) =>
ArrowDataType::Binary,
+ PaimonDataType::Date(_) => ArrowDataType::Date32,
+ PaimonDataType::Time(_) =>
ArrowDataType::Time32(TimeUnit::Millisecond),
+ PaimonDataType::Timestamp(t) => {
Review Comment:
I will revert it to Millisecond.
--
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]
