ArrowAstropySchema¶

class lsst.daf.butler.formatters.parquet.ArrowAstropySchema(astropy_table: atable.Table)¶

Wrapper class for a schema for an astropy table.

Parameters:	astropy_table : `astropy.table.Table` Input astropy table.

Attributes Summary

Methods Summary

`from_arrow`(schema)	Convert an arrow schema into a ArrowAstropySchema.
`to_arrow_numpy_schema`()	Convert to an `ArrowNumpySchema`.
`to_arrow_schema`()	Convert to an arrow schema.
`to_dataframe_schema`()	Convert to a DataFrameSchema.

Attributes Documentation

Methods Documentation

classmethod from_arrow(schema: pyarrow.lib.Schema) → lsst.daf.butler.formatters.parquet.ArrowAstropySchema¶

Convert an arrow schema into a ArrowAstropySchema.

Parameters:	schema : `pyarrow.Schema` Input pyarrow schema.
Returns:	astropy_schema : `ArrowAstropySchema` Converted arrow astropy schema.

to_arrow_numpy_schema() → lsst.daf.butler.formatters.parquet.ArrowNumpySchema¶

Returns:	arrow_numpy_schema : `ArrowNumpySchema` Converted arrow numpy schema.

to_arrow_schema() → pyarrow.lib.Schema¶

Convert to an arrow schema.

Returns:	arrow_schema : `pyarrow.Schema` Converted pyarrow schema.

to_dataframe_schema() → lsst.daf.butler.formatters.parquet.DataFrameSchema¶

Convert to a DataFrameSchema.

Returns:	dataframe_schema : `DataFrameSchema` Converted dataframe schema.