polars.read_parquet_schema#
- polars.read_parquet_schema(source: str | Path | IO[bytes] | bytes) dict[str, DataType] [source]#
Get the schema of a Parquet file without reading data.
- Parameters:
- source
Path to a file or a file-like object (by “file-like object” we refer to objects that have a
read()
method, such as a file handler like the builtinopen
function, or aBytesIO
instance). For file-like objects, stream position may not be updated accordingly after reading.
- Returns:
- dict
Dictionary mapping column names to datatypes