coderfender commented on code in PR #3559:
URL: https://github.com/apache/datafusion-comet/pull/3559#discussion_r2893124468
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native/spark-expr/src/conversion_funcs/numeric.rs:
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@@ -75,6 +75,56 @@ pub(crate) fn
is_df_cast_from_decimal_spark_compatible(to_type: &DataType) -> bo
)
}
+macro_rules! cast_float_to_timestamp_impl {
+ ($array:expr, $builder:expr, $primitive_type:ty, $eval_mode:expr) => {{
+ let arr = $array.as_primitive::<$primitive_type>();
+ for i in 0..arr.len() {
+ if arr.is_null(i) {
+ $builder.append_null();
+ } else {
+ let val = arr.value(i) as f64;
+ // Path 1: NaN/Infinity check - error says TIMESTAMP
+ if val.is_nan() || val.is_infinite() {
+ if $eval_mode == EvalMode::Ansi {
+ return Err(SparkError::CastInvalidValue {
+ value: val.to_string(),
+ from_type: "DOUBLE".to_string(),
+ to_type: "TIMESTAMP".to_string(),
+ });
+ }
+ $builder.append_null();
+ } else {
+ // Path 2: Multiply then check overflow - error says BIGINT
+ let micros = val * MICROS_PER_SECOND as f64;
+ if micros.floor() <= i64::MAX as f64 && micros.ceil() >=
i64::MIN as f64 {
Review Comment:
Perhaps your query context changes could help us pass the right error
messages across :)
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