fix: use nanos for datetime (#2072)

pola-rs · Dec 18, 2021 · 71c5877 · 71c5877
1 parent 9a3b5af
commit 71c5877
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/polars/polars-core/src/chunked_array/temporal/datetime.rs b/polars/polars-core/src/chunked_array/temporal/datetime.rs
@@ -1,6 +1,6 @@
 use super::*;
 use crate::prelude::*;
-use arrow::temporal_conversions::timestamp_ms_to_datetime;
+use arrow::temporal_conversions::timestamp_ns_to_datetime;
 
 impl DatetimeChunked {
     pub fn as_datetime_iter(
@@ -9,7 +9,7 @@ impl DatetimeChunked {
         self.downcast_iter()
             .map(|iter| {
                 iter.into_iter()
-                    .map(|opt_v| opt_v.copied().map(timestamp_ms_to_datetime))
+                    .map(|opt_v| opt_v.copied().map(timestamp_ns_to_datetime))
             })
             .flatten()
             .trust_my_length(self.len())
@@ -86,7 +86,7 @@ impl DatetimeChunked {
         let mut ca: Utf8Chunked = self.apply_kernel_cast(|arr| {
             let arr: Utf8Array<i64> = arr
                 .into_iter()
-                .map(|opt| opt.map(|v| format!("{}", timestamp_ms_to_datetime(*v).format(fmt))))
+                .map(|opt| opt.map(|v| format!("{}", timestamp_ns_to_datetime(*v).format(fmt))))
                 .collect();
             Arc::new(arr)
         });