pyspark.sql.streaming.DataStreamReader.csv

DataStreamReader.csv(path: str, schema: Union[pyspark.sql.types.StructType, str, None] = None, sep: Optional[str] = None, encoding: Optional[str] = None, quote: Optional[str] = None, escape: Optional[str] = None, comment: Optional[str] = None, header: Union[bool, str, None] = None, inferSchema: Union[bool, str, None] = None, ignoreLeadingWhiteSpace: Union[bool, str, None] = None, ignoreTrailingWhiteSpace: Union[bool, str, None] = None, nullValue: Optional[str] = None, nanValue: Optional[str] = None, positiveInf: Optional[str] = None, negativeInf: Optional[str] = None, dateFormat: Optional[str] = None, timestampFormat: Optional[str] = None, maxColumns: Union[str, int, None] = None, maxCharsPerColumn: Union[str, int, None] = None, maxMalformedLogPerPartition: Union[str, int, None] = None, mode: Optional[str] = None, columnNameOfCorruptRecord: Optional[str] = None, multiLine: Union[bool, str, None] = None, charToEscapeQuoteEscaping: Union[bool, str, None] = None, enforceSchema: Union[bool, str, None] = None, emptyValue: Optional[str] = None, locale: Optional[str] = None, lineSep: Optional[str] = None, pathGlobFilter: Union[bool, str, None] = None, recursiveFileLookup: Union[bool, str, None] = None, unescapedQuoteHandling: Optional[str] = None) → DataFrame

Loads a CSV file stream and returns the result as a DataFrame.

This function will go through the input once to determine the input schema if inferSchema is enabled. To avoid going through the entire data once, disable inferSchema option or specify the schema explicitly using schema.

Parameters

pathstr or list

string, or list of strings, for input path(s).

schemapyspark.sql.types.StructType or str, optional

an optional pyspark.sql.types.StructType for the input schema or a DDL-formatted string (For example col0 INT, col1 DOUBLE).

Other Parameters

Extra options

For the extra options, refer to Data Source Option in the version you use.

Notes

This API is evolving.

Examples

>>> csv_sdf = spark.readStream.csv(tempfile.mkdtemp(), schema = sdf_schema)
>>> csv_sdf.isStreaming
True
>>> csv_sdf.schema == sdf_schema
True

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