Pandas to_parquet append

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Query: pandas to_parquet append

The to_parquet function in pandas library is used to write a DataFrame to the Parquet file format. When the append parameter is set to True, it appends the DataFrame to an existing Parquet file rather than creating a new file.

Here is an example demonstrating the usage of to_parquet function with append=True:

    
      import pandas as pd
      
      # Create a DataFrame
      df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
      
      # Write the DataFrame to a Parquet file
      df.to_parquet('data.parquet', append=True)

In the above example, the DataFrame df is written to the Parquet file named data.parquet with append=True. If the file already exists, the DataFrame will be appended to it. If the file does not exist, a new file will be created.

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