Context: T291829: Drop wb_changes_dispatch table; the table was used in the old change dispatching system, which we no longer use. (You can see that the chd_touched column is frozen in time, not updated since 2021-10-04.)
- ALTERs to run: DROP TABLE wb_changes_dispatch;
- or maybe something like RENAME TABLE wb_changes_dispatch TO T294121_DROP_wb_changes_dispatch; wait for a bit to ensure that nothing is trying to use the table; then DROP TABLE T294121_DROP_wb_changes_dispatch – if you want to be extra safe
- Where to run those changes: wikibaserepo.dblist
- commonswiki
- testcommonswiki
- testwikidatawiki
- wikidatawiki
- When to run those changes: At any time
- If the schema change is backwards compatible: Yes
- If the schema change has been tested already on some of the test/beta wikis: Yes, dropped via update.php in Beta