After LinkTitles was installed on a wiki that uses sqlite.
Whenever a (non-minor) edit is made to a page, I get the following error:
A database error has occurred. Did you forget to run maintenance/update.php after upgrading? See: https://www.mediawiki.org/wiki/Manual:Upgrading#Run_the_update_script
Query: SELECT page_title FROM page WHERE (page_namespace = 0) AND (CHAR_LENGTH(page_title) >= 3) AND (page_title NOT IN ("")) ORDER BY CHAR_LENGTH(page_title) DESC
Error: 1 no such function: CHAR_LENGTH
Looks to me like the code assumes that the wiki uses mysql and therefor uses CHAR_LENGTH function. A function that doesn't exist in sqlite.