pyspark.sql.streaming.DataStreamReader.schema

DataStreamReader.schema(schema)

Specifies the input schema.

Some data sources (e.g. JSON) can infer the input schema automatically from data. By specifying the schema here, the underlying data source can skip the schema inference step, and thus speed up data loading.

Note

Evolving.

Parameters

schema – a pyspark.sql.types.StructType object or a DDL-formatted string (For example col0 INT, col1 DOUBLE).

>>> s = spark.readStream.schema(sdf_schema)
>>> s = spark.readStream.schema("col0 INT, col1 DOUBLE")

New in version 2.0.

pyspark.sql.streaming.DataStreamReader.parquet pyspark.sql.streaming.DataStreamReader.text