pyspark.sql.functions.schema_of_json¶

pyspark.sql.functions.schema_of_json(json: ColumnOrName, options: Optional[Dict[str, str]] = None) → pyspark.sql.column.Column[source]¶

Parses a JSON string and infers its schema in DDL format.

New in version 2.4.0.

Parameters

jsonColumn or str: a JSON string or a foldable string column containing a JSON string.
optionsdict, optional: options to control parsing. accepts the same options as the JSON datasource. See Data Source Option in the version you use.

Changed in version 3.0: It accepts options parameter to control schema inferring.

Examples

>>> df = spark.range(1)
>>> df.select(schema_of_json(lit('{"a": 0}')).alias("json")).collect()
[Row(json='STRUCT<a: BIGINT>')]
>>> schema = schema_of_json('{a: 1}', {'allowUnquotedFieldNames':'true'})
>>> df.select(schema.alias("json")).collect()
[Row(json='STRUCT<a: BIGINT>')]

pyspark.sql.functions.from_json pyspark.sql.functions.to_json