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https://issues.apache.org/jira/browse/FLINK-40187?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-40187:
-----------------------------------
Labels: pull-request-available (was: )
> Introduce DataType class in DataFrame API
> -----------------------------------------
>
> Key: FLINK-40187
> URL: https://issues.apache.org/jira/browse/FLINK-40187
> Project: Flink
> Issue Type: Sub-task
> Components: API / Python
> Reporter: Dian Fu
> Assignee: Liu Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.4.0
>
>
> It may look like the following:
> {code:python}
> class DataType:
> # Numeric types
> @classmethod def int8(cls) -> DataType # TINYINT
> @classmethod def int16(cls) -> DataType # SMALLINT
> @classmethod def int32(cls) -> DataType # INT
> @classmethod def int64(cls) -> DataType # BIGINT
> @classmethod def float32(cls) -> DataType # FLOAT
> @classmethod def float64(cls) -> DataType # DOUBLE
> @classmethod def decimal(cls, precision: int, scale: int) -> DataType
> # String/Binary types
> @classmethod def string(cls) -> DataType # VARCHAR
> @classmethod def fixed_size_string(cls, length: int) -> DataType # CHAR(n)
> @classmethod def binary(cls) -> DataType # BYTES
> @classmethod def fixed_size_binary(cls, length: int) -> DataType #
> BINARY(n)
> # Boolean & Null
> @classmethod def bool(cls) -> DataType # BOOLEAN
> @classmethod def null(cls) -> DataType # NULL
> # Temporal types
> @classmethod def date(cls) -> DataType
> @classmethod def time(cls, precision: int = 0) -> DataType
> @classmethod def timestamp(cls, precision: int = 6) -> DataType
> @classmethod def timestamp_ltz(cls, precision: int = 6) -> DataType
> # Complex types
> @classmethod def list(cls, dtype: DataType) -> DataType
> @classmethod def map(cls, key_type: DataType, value_type: DataType) ->
> DataType
> @classmethod def struct(cls, fields: Union[Dict[str, DataType],
> List[tuple]]) -> DataType
> # Modifiers
> def not_null(self) -> DataType
> def nullable(self) -> DataType
> {code}
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