Nóta
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as shíniú isteach nó eolairí a athrú.
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as eolairí a athrú.
Adds an input option for the underlying data source.
For available options, see DataStreamReader options.
Syntax
option(key, value)
Parameters
| Parameter | Type | Description |
|---|---|---|
key |
str | The option key. |
value |
str, int, float, or bool | The option value. |
Returns
DataStreamReader
Examples
spark.readStream.option("x", 1)
# <...streaming.readwriter.DataStreamReader object ...>
Generate 10 rows per second using the Rate source:
import time
q = spark.readStream.format(
"rate").option("rowsPerSecond", 10).load().writeStream.format("console").start()
time.sleep(3)
q.stop()