rok commented on a change in pull request #10998:
URL: https://github.com/apache/arrow/pull/10998#discussion_r698647919
##########
File path: docs/source/cpp/compute.rst
##########
@@ -1101,19 +1101,29 @@ number of input and output types. The type to cast to
can be passed in a
:struct:`CastOptions` instance. As an alternative, the same service is
provided by a concrete function :func:`~arrow::compute::Cast`.
-+--------------------------+------------+--------------------+------------------+------------------------------+
-| Function name | Arity | Input types | Output type
| Options class |
-+==========================+============+====================+==================+==============================+
-| cast | Unary | Many | Variable
| :struct:`CastOptions` |
-+--------------------------+------------+--------------------+------------------+------------------------------+
-| strftime | Unary | Timestamp | String
| :struct:`StrftimeOptions` |
-+--------------------------+------------+--------------------+------------------+------------------------------+
-| strptime | Unary | String-like | Timestamp
| :struct:`StrptimeOptions` |
-+--------------------------+------------+--------------------+------------------+------------------------------+
++-----------------+------------+--------------------+------------------+------------------------------+-------+
+| Function name | Arity | Input types | Output type |
Options class | Notes |
++=================+============+====================+==================+==============================+=======+
+| cast | Unary | Many | Variable |
:struct:`CastOptions` | |
++-----------------+------------+--------------------+------------------+------------------------------+-------+
+| strftime | Unary | Timestamp | String |
:struct:`StrftimeOptions` | \(1) |
++-----------------+------------+--------------------+------------------+------------------------------+-------+
+| strptime | Unary | String-like | Timestamp |
:struct:`StrptimeOptions` | |
++-----------------+------------+--------------------+------------------+------------------------------+-------+
The conversions available with ``cast`` are listed below. In all cases, a
null input value is converted into a null output value.
+* \(1) Output precision of seconds (``%S``) flag depends on the input timestamp
+ precision. If the number of seconds can not be exactly represented with
seconds,
+ then the format is a decimal floating point number with a fixed format and a
+ precision matching that of the precision of the input. Note precision
increases
+ three decimal points points per step going from seconds to nanoseconds.
Review comment:
Thanks for catching that. I think what happened was an accidental force
push.
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