选项 (DataStreamWriter)

为基础数据源添加多个输出选项。

有关可用选项,请参阅 DataStreamWriter 选项

Syntax

options(**options)

参数

参数 类型 Description
**options dict 选项的键值对。

退货

DataStreamWriter

示例

df = spark.readStream.format("rate").load()
df.writeStream.options(**{"k1": "v1", "k2": "v2"})
# <...streaming.readwriter.DataStreamWriter object ...>

在不截断的情况下打印每批 3 行:

import time
q = spark.readStream.format(
    "rate").option("rowsPerSecond", 10).load().writeStream.format(
        "console").options(numRows=3, truncate=False).start()
time.sleep(3)
q.stop()