25 lines
550 B
Python
25 lines
550 B
Python
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import pyarrow as pa
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import numpy as np
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import pyarrow.parquet as pq
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db = pa.array(np.linspace(10,50,6))
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print(db)
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da = pa.array(np.linspace(0,5,6))
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print(db)
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filenam = 'pyarrow_testtab.parquet'
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patab = pa.Table.from_arrays([da,db],['entity A [unitA]','entity B [unitB]'])
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print(patab)
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# pq.write_table(patab,filenam,compression='BROTLI')
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pq.write_table(patab,filenam,compression='SNAPPY')
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df = pq.read_table(filenam)
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print(df)
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print(df.to_pandas())
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#import readline
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#readline.write_history_file('generate_pyarrow_table_and_write_parquet.py')
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