Why doesn't Special:Search ever find anything on my test wiki that is on a computer powered up only a few hours every few days? Must be some mysterious cron function. OK, this looks like it will manually refresh things: $ php rebuildtextindex.php Dropping index... A database query syntax error has occurred. The last attempted database query was: "ALTER TABLE `searchindex` DROP INDEX si_title, DROP INDEX si_text" from within function "dropTextIndex". MySQL returned error "1142: ALTER command denied to user 'wikiuser'@'localhost' for table 'searchindex' (localhost)"
OK, but why wasn't that detected/fixed by the upgrader script when I upgraded to 1.9.0? Now what? Manually change some/what mysql things? I don't want to put my fingers in there.