HyukjinKwon commented on code in PR #49348:
URL: https://github.com/apache/spark/pull/49348#discussion_r1902770447
##########
python/pyspark/sql/functions/builtin.py:
##########
@@ -15580,36 +15639,70 @@ def regexp_substr(str: "ColumnOrName", regexp:
"ColumnOrName") -> Column:
def regexp_instr(
str: "ColumnOrName", regexp: "ColumnOrName", idx: Optional[Union[int,
Column]] = None
) -> Column:
- r"""Extract all strings in the `str` that match the Java regex `regexp`
+ r"""Returns the position of the first substring in the `str` that match
the Java regex `regexp`
and corresponding to the regex group index.
.. versionadded:: 3.5.0
Parameters
----------
- str : :class:`~pyspark.sql.Column` or str
+ str : :class:`~pyspark.sql.Column` or column name
target column to work on.
- regexp : :class:`~pyspark.sql.Column` or str
+ regexp : :class:`~pyspark.sql.Column` or column name
regex pattern to apply.
- idx : int, optional
+ idx : :class:`~pyspark.sql.Column` or int, optional
Review Comment:
It is used via `RegExpExtractBase` :-)
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