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by ergocoder 1385 days ago
Wow this is helpful. I'm using sqlite for some of my projects and always bothered that some functions are missing. WITH RECURSIVE is too mind bending.

This seems like I can add a lot more functions to it, not just regex extract.

Came here to complain and learned something useful.

1 comments

Probably also worth noting: you don't need to build (many kinds of) extensions as C-compatible code and separate .so files that you load.

SQLite is an in-process database. You can give it a callback func to execute. So your regex-extract can literally just call a function in your code: https://sqlite.org/appfunc.html

edit: Python's stdlib documentation concisely shows how easy this can be: https://docs.python.org/3/library/sqlite3.html#sqlite3.Conne... Basically every SQLite library should have something similar. This extreme ease of extending is a big part of why SQLite has so little built-in.