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Docstrings for Timestamp*Array. #988

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Dec 4, 2021
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Docstrings for Timestamp*Array. #988

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83abb7f
Docstrings for TimestampSecondArray.
novemberkilo Dec 1, 2021
9b5050b
fixup! Docstrings for TimestampSecondArray.
novemberkilo Dec 1, 2021
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50 changes: 49 additions & 1 deletion arrow/src/array/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -318,10 +318,58 @@ pub type UInt32DictionaryArray = DictionaryArray<UInt32Type>;
/// assert_eq!(array.values(), &values);
/// ```
pub type UInt64DictionaryArray = DictionaryArray<UInt64Type>;

///
/// A primitive array where each element is of type `TimestampSecondType.`
/// See also [`Timestamp.`](crate::datatypes::Timestamp)
///
/// # Example: UTC timestamps post epoch
/// ```
/// # use arrow::array::TimestampSecondArray;
/// use chrono::FixedOffset;
/// // Corresponds to single element array with entry 1970-05-09T14:25:11+0:00
/// let arr = TimestampSecondArray::from_vec(vec![11111111], None);
/// // OR
/// let arr = TimestampSecondArray::from_opt_vec(vec![Some(11111111)], None);
/// let utc_offset = FixedOffset::east(0);
///
/// assert_eq!(arr.value_as_datetime_with_tz(0, utc_offset).map(|v| v.to_string()).unwrap(), "1970-05-09 14:25:11")
/// ```
///
/// # Example: UTC timestamps pre epoch
/// ```
/// # use arrow::array::TimestampSecondArray;
/// use chrono::FixedOffset;
/// // Corresponds to single element array with entry 1969-08-25T09:34:49+0:00
/// let arr = TimestampSecondArray::from_vec(vec![-11111111], None);
/// // OR
/// let arr = TimestampSecondArray::from_opt_vec(vec![Some(-11111111)], None);
/// let utc_offset = FixedOffset::east(0);
///
/// assert_eq!(arr.value_as_datetime_with_tz(0, utc_offset).map(|v| v.to_string()).unwrap(), "1969-08-25 09:34:49")
/// ```
///
/// # Example: With timezone specified
/// ```
/// # use arrow::array::TimestampSecondArray;
/// use chrono::FixedOffset;
/// // Corresponds to single element array with entry 1970-05-10T00:25:11+10:00
/// let arr = TimestampSecondArray::from_vec(vec![11111111], Some("+10:00".to_string()));
/// // OR
/// let arr = TimestampSecondArray::from_opt_vec(vec![Some(11111111)], Some("+10:00".to_string()));
/// let sydney_offset = FixedOffset::east(10 * 60 * 60);
///
/// assert_eq!(arr.value_as_datetime_with_tz(0, sydney_offset).map(|v| v.to_string()).unwrap(), "1970-05-10 00:25:11")
/// ```
///
pub type TimestampSecondArray = PrimitiveArray<TimestampSecondType>;
/// A primitive array where each element is of type `TimestampMillisecondType.`
/// See examples for [`TimestampSecondArray.`](crate::array::TimestampSecondArray)
pub type TimestampMillisecondArray = PrimitiveArray<TimestampMillisecondType>;
/// A primitive array where each element is of type `TimestampMicrosecondType.`
/// See examples for [`TimestampSecondArray.`](crate::array::TimestampSecondArray)
pub type TimestampMicrosecondArray = PrimitiveArray<TimestampMicrosecondType>;
/// A primitive array where each element is of type `TimestampNanosecondType.`
/// See examples for [`TimestampSecondArray.`](crate::array::TimestampSecondArray)
pub type TimestampNanosecondArray = PrimitiveArray<TimestampNanosecondType>;
pub type Date32Array = PrimitiveArray<Date32Type>;
pub type Date64Array = PrimitiveArray<Date64Type>;
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