Fix upstream idxmaxmin for uneven split_every (#7538)

dask · Apr 12, 2021 · 09862ed · 09862ed
1 parent e83379d
commit 09862ed
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dask/dataframe/core.py b/dask/dataframe/core.py
@@ -6516,7 +6516,7 @@ def idxmaxmin_row(x, fn=None, skipna=True):
 
 
 def idxmaxmin_combine(x, fn=None, skipna=True):
-    if len(x) == 0:
+    if len(x) <= 1:
         return x
     return (
         x.groupby(level=0)