capnpc-parquet

capnpc-parquet is a Cap'n Proto compiler plugin that converts a Cap'n Proto schema to a Parquet schema.

Reference:

Cap'n Proto Schema Language

Table of Contents

• License
• Building
• Using

License

This project is licensed under the Apache License, Version 2.0.

Building

capnpc-parquet uses CMake for its build system.

mkdir build
cd build
cmake ..
make

Using

The basic command line to use this compiler plugin is:

capnpc -o ./capnpc-parquet file.capnp

This plugin prints out the generated Parquet schema.

Possible uses:

1. Write out a program that reads/writes a Parquet file using the compiled schema. The coded generated could use the Parquet-Cpp or Arrow libraries.

2. Write out a program that generates a Parquet file filed with randomly generated data using the compiled schema.