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DEVELOPMENT.md

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Build on windows

Creating a DuckDB extension on Windows using MinGW on MSYS2 requires several steps, including setting up your environment, obtaining the necessary source code and dependencies, and compiling the extension. Here’s a detailed guide:

Sources

Set environmet variable

  1. Install MSYS2 and MinGW:

    • Download MSYS2 installer from the official website.
    • Run the installer and follow the instructions to install MSYS2 on your machine.
    • Open MSYS2 terminal and update the package database and core system packages with: pacman -Syu.
    • Install MinGW-w64 by running: pacman -S git mingw-w64-x86_64-toolchain mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja.

  2. Setup Environment:

    • Close and reopen MSYS2 terminal.
    • Add MinGW to your system PATH: export PATH="/mingw64/bin:$PATH".

  3. Download Extension Source Code:

    • Clone the ERPL repository: git clone https://github.com/duckdb/duckdb.git.
    • Fetch the duckdb submodule after clone: git submodule update --init --recursive. (To make this work under windows I had to first git config --global core.sshCommand 'C:/Windows/System32/OpenSSH/ssh.exe')
    • Navigate to the duckdb directory: cd duckdb and checkout the v0.9.0 tag: git checkout v0.9.0.

  4. Download sapnwrfc Library:

    • Download the sapnwrfc library from the official website (or the Zip from our Google Drive).
    • Extract the downloaded archive and copy the sapnwrfc directory to the sapnwrfc directory in the erpl repository.

  5. Configure and Build:

    • Run the following command in the root directory of the extension: mingw32-make release.

  6. Testing Your Extension:

    • Create a directory (e.g. test).
    • Copy the following artifacts to that directory.
    • The built duckdb executable (e.g. .\build\release\duckdb.exe).
    • The built erpl extension (e.g. .\build\release\extension\erpl\erpl.duckdb_extension).
    • All *.dll files from .\sapnwrfc\lib.
    • Run duckdb with the following command: .\duckdb.exe -unsigned.
    • In the DuckDB shell_
      • First install the erpl-extension with: INSTALL 'erpl.duckdb_extension';.
      • And then load the extension with: LOAD 'erpl';.

📦 Deploying the extension (TODO)

To deploy the extension, simply run: sh ./scripts/extension_upload.sh

Debuging SAP behavior

Relevant transctions

  • SM04 Login List
  • SM50 Work Process Overview
  • ST02 Memory Statistics / Tune Summary
  • ST03 Workload and Performance Statistics
  • SM21 System Log
  • DBACOCKPIT DBA Cockpit