[SPARK-22566][PYTHON] Remove unnecessary copying of names list

apache · Dec 14, 2017 · 6d171dd · 6d171dd
1 parent 404fdbb
commit 6d171dd
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/python/pyspark/sql/types.py b/python/pyspark/sql/types.py
@@ -1086,7 +1086,6 @@ def _infer_schema(row, names=None):
             if names is None:
                 names = ['_%d' % i for i in range(1, len(row) + 1)]
             elif len(names) < len(row):
-                names = names[:]
                 names.extend('_%d' % i for i in range(len(names) + 1, len(row) + 1))
             items = zip(names, row)