alamb commented on code in PR #4149:
URL: https://github.com/apache/arrow-datafusion/pull/4149#discussion_r1020749024
##########
datafusion/optimizer/src/unwrap_cast_in_comparison.rs:
##########
@@ -292,6 +296,25 @@ fn is_support_data_type(data_type: &DataType) -> bool {
)
}
+fn is_decimal_type(dt: &DataType) -> bool {
+ matches!(dt, DataType::Decimal128(_, _))
+}
+
+fn is_unsigned_type(dt: &DataType) -> bool {
+ matches!(
+ dt,
+ DataType::UInt8 | DataType::UInt16 | DataType::UInt32 |
DataType::UInt64
+ )
+}
+
+/// Until https://github.com/apache/arrow-rs/issues/1043 is done
+/// (support for unsigned <--> decimal casts) we also don't do that
+/// kind of cast in this optimizer
+fn is_unsupported_cast(dt1: &DataType, dt2: &DataType) -> bool {
Review Comment:
I found this with the test (which failed when it tried to invoke the arrow
cast kernels for decimal <--> unsigned)
##########
datafusion/core/tests/sql/joins.rs:
##########
@@ -1428,9 +1428,9 @@ async fn reduce_left_join_1() -> Result<()> {
"Explain [plan_type:Utf8, plan:Utf8]",
" Projection: t1.t1_id, t1.t1_name, t1.t1_int, t2.t2_id, t2.t2_name,
t2.t2_int [t1_id:UInt32;N, t1_name:Utf8;N, t1_int:UInt32;N, t2_id:UInt32;N,
t2_name:Utf8;N, t2_int:UInt32;N]",
" Inner Join: t1.t1_id = t2.t2_id [t1_id:UInt32;N, t1_name:Utf8;N,
t1_int:UInt32;N, t2_id:UInt32;N, t2_name:Utf8;N, t2_int:UInt32;N]",
- " Filter: CAST(t1.t1_id AS Int64) < Int64(100) [t1_id:UInt32;N,
t1_name:Utf8;N, t1_int:UInt32;N]",
Review Comment:
🎉 the casts have been removed!
--
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]
