queryName (DataStreamWriter)
Specifies the name of the StreamingQuery that can be started with start(). This name must be unique among all currently active queries in the associated SparkSession.
Syntax
queryName(queryName)
Parameters
Parameter | Type | Description |
|---|---|---|
| str | Unique name for the query. |
Returns
DataStreamWriter
Examples
Python
import time
df = spark.readStream.format("rate").load()
q = df.writeStream.queryName("streaming_query").format("console").start()
q.stop()
q.name
# 'streaming_query'