openwiki-mtmw/wikiroot/mediawiki-1.39.2/w/extensions/AbuseFilter/db_patches/mysql/patch-remove-afl_filter.sql

DROP INDEX /*i*/afl_filter_timestamp ON /*_*/abuse_filter_log;
ALTER TABLE /*_*/abuse_filter_log
	DROP COLUMN afl_filter,
	ALTER COLUMN afl_filter_id DROP DEFAULT,
	ALTER COLUMN afl_global DROP DEFAULT;