spark-instrumented-optimizer/python/pyspark/sql/context.pyi
zero323 31a16fbb40 [SPARK-32714][PYTHON] Initial pyspark-stubs port
### What changes were proposed in this pull request?

This PR proposes migration of [`pyspark-stubs`](https://github.com/zero323/pyspark-stubs) into Spark codebase.

### Why are the changes needed?

### Does this PR introduce _any_ user-facing change?

Yes. This PR adds type annotations directly to Spark source.

This can impact interaction with development tools for users, which haven't used `pyspark-stubs`.

### How was this patch tested?

- [x] MyPy tests of the PySpark source
    ```
    mypy --no-incremental --config python/mypy.ini python/pyspark
    ```
- [x] MyPy tests of Spark examples
    ```
   MYPYPATH=python/ mypy --no-incremental --config python/mypy.ini examples/src/main/python/ml examples/src/main/python/sql examples/src/main/python/sql/streaming
    ```
- [x] Existing Flake8 linter

- [x] Existing unit tests

Tested against:

- `mypy==0.790+dev.e959952d9001e9713d329a2f9b196705b028f894`
- `mypy==0.782`

Closes #29591 from zero323/SPARK-32681.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-09-24 14:15:36 +09:00

140 lines
4.8 KiB
Python

#
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from typing import overload
from typing import Any, Callable, Iterable, List, Optional, Tuple, TypeVar, Union
from py4j.java_gateway import JavaObject # type: ignore[import]
from pyspark.sql._typing import (
DateTimeLiteral,
LiteralType,
DecimalLiteral,
RowLike,
)
from pyspark.sql.pandas._typing import DataFrameLike
from pyspark.context import SparkContext
from pyspark.rdd import RDD
from pyspark.sql.dataframe import DataFrame
from pyspark.sql.session import SparkSession
from pyspark.sql.types import AtomicType, DataType, StructType
from pyspark.sql.udf import UDFRegistration as UDFRegistration
from pyspark.sql.readwriter import DataFrameReader
from pyspark.sql.streaming import DataStreamReader, StreamingQueryManager
T = TypeVar("T")
class SQLContext:
sparkSession: SparkSession
def __init__(
self,
sparkContext,
sparkSession: Optional[SparkSession] = ...,
jsqlContext: Optional[JavaObject] = ...,
) -> None: ...
@classmethod
def getOrCreate(cls: type, sc: SparkContext) -> SQLContext: ...
def newSession(self) -> SQLContext: ...
def setConf(self, key: str, value) -> None: ...
def getConf(self, key: str, defaultValue: Optional[str] = ...) -> str: ...
@property
def udf(self) -> UDFRegistration: ...
def range(
self,
start: int,
end: Optional[int] = ...,
step: int = ...,
numPartitions: Optional[int] = ...,
) -> DataFrame: ...
def registerFunction(
self, name: str, f: Callable[..., Any], returnType: DataType = ...
) -> None: ...
def registerJavaFunction(
self, name: str, javaClassName: str, returnType: Optional[DataType] = ...
) -> None: ...
@overload
def createDataFrame(
self,
data: Union[RDD[RowLike], Iterable[RowLike]],
samplingRatio: Optional[float] = ...,
) -> DataFrame: ...
@overload
def createDataFrame(
self,
data: Union[RDD[RowLike], Iterable[RowLike]],
schema: Union[List[str], Tuple[str, ...]] = ...,
verifySchema: bool = ...,
) -> DataFrame: ...
@overload
def createDataFrame(
self,
data: Union[
RDD[Union[DateTimeLiteral, LiteralType, DecimalLiteral]],
Iterable[Union[DateTimeLiteral, LiteralType, DecimalLiteral]],
],
schema: Union[AtomicType, str],
verifySchema: bool = ...,
) -> DataFrame: ...
@overload
def createDataFrame(
self,
data: Union[RDD[RowLike], Iterable[RowLike]],
schema: Union[StructType, str],
verifySchema: bool = ...,
) -> DataFrame: ...
@overload
def createDataFrame(
self, data: DataFrameLike, samplingRatio: Optional[float] = ...
) -> DataFrame: ...
@overload
def createDataFrame(
self,
data: DataFrameLike,
schema: Union[StructType, str],
verifySchema: bool = ...,
) -> DataFrame: ...
def registerDataFrameAsTable(self, df: DataFrame, tableName: str) -> None: ...
def dropTempTable(self, tableName: str) -> None: ...
def createExternalTable(
self,
tableName: str,
path: Optional[str] = ...,
source: Optional[str] = ...,
schema: Optional[StructType] = ...,
**options
) -> DataFrame: ...
def sql(self, sqlQuery: str) -> DataFrame: ...
def table(self, tableName: str) -> DataFrame: ...
def tables(self, dbName: Optional[str] = ...) -> DataFrame: ...
def tableNames(self, dbName: Optional[str] = ...) -> List[str]: ...
def cacheTable(self, tableName: str) -> None: ...
def uncacheTable(self, tableName: str) -> None: ...
def clearCache(self) -> None: ...
@property
def read(self) -> DataFrameReader: ...
@property
def readStream(self) -> DataStreamReader: ...
@property
def streams(self) -> StreamingQueryManager: ...
class HiveContext(SQLContext):
def __init__(
self, sparkContext: SparkContext, jhiveContext: Optional[JavaObject] = ...
) -> None: ...
def refreshTable(self, tableName: str) -> None: ...