zhengruifeng commented on code in PR #48575:
URL: https://github.com/apache/spark/pull/48575#discussion_r1808126235
##########
python/pyspark/sql/types.py:
##########
@@ -3273,6 +3273,8 @@ def _from_numpy_type_to_java_type(
return gateway.jvm.double
elif nt == np.dtype("bool"):
return gateway.jvm.boolean
+ elif np.isdtype(nt, np.str_):
Review Comment:
check with:
```
In [1]: import numpy as np
In [2]: a = np.array([1, 2, 3], np.str_)
In [3]: a.dtype == np.dtype("str")
Out[3]: False
In [4]: np.isdtype(a.dtype, np.str_)
Out[4]: True
```
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