Running a query containing the `REGEXP` function with an invalid pattern breaks

[se7entyse7en]

If the query contains the REGEXP function and the pattern is invalid, then the server stops working and doesn't recover anymore. This bug was noticed when using gitbase-web. Please see here.

[erizocosmico]

Can you post an example query and the panic it produces?

[kuba--]

@erizocosmico I've already fixed that - writing tests
Btw. example:

SELECT * FROM commit_files WHERE file_path REGEXP("*main.go");