2ndQuadrant has written before about how to build your own extension for Windows. This time we take a look at what it takes to port one written by someone else. I am building this for PostgreSQL 11 on Windows using Visual Studio 2019 and clang.

Here we are working with the hashtypes extension. Unfortunately, at the time of writing, version 0.1.5 has not been released with the support for PostgreSQL 11. So we build one from git.

git clone https://github.com/adjust/hashtypes.git

The first thing we do is to take a look at the C source files. There are only four of them, common.c, crc32.c, md5.c, and sha.c so we can be reasonably sure the porting effort will be quick.
Continue reading Porting a PostgreSQL Extension from Unix to Windows 10 →