tldr/pages/common/parquet-tools.md

parquet-tools

A tool to show, inspect and manipulate Parquet file. More information: https://github.com/apache/parquet-mr/tree/master/parquet-tools.

• Display the content of a Parquet file:

parquet-tools cat {{path/to/parquet}}

• Display the first few lines of a Parquet file:

parquet-tools head {{path/to/parquet}}

• Print the schema of a Parquet file:

parquet-tools schema {{path/to/parquet}}

• Print the metadata of a Parquet file:

parquet-tools meta {{path/to/parquet}}

• Print the content and metadata of a Parquet file:

parquet-tools dump {{path/to/parquet}}

• Concatenate several Parquet files into the target one:

parquet-tools merge {{path/to/parquet1}} {{path/to/parquet2}} {{path/to/target_parquet}}

• Print the count of rows in a Parquet file:

parquet-tools rowcount {{path/to/parquet}}

• Print the column and offset indexes of a Parquet file:

parquet-tools column-index {{path/to/parquet}}