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.
Converts a DataFrame into a RDD of string or DataFrame.
Syntax
toJSON(use_unicode: bool = True)
Parameters
| Parameter | Type | Description |
|---|---|---|
use_unicode |
bool, optional, default True | Whether to convert to unicode or not. Note that this argument is disallowed in Spark Connect mode. |
Returns
:class:RDD (in Classic mode) or `:class:`DataFrame (in connect mode)
Examples
df = spark.createDataFrame([(2, "Alice"), (5, "Bob")], schema=["age", "name"])
df.toJSON().first()
# '{"age":2,"name":"Alice"}'