Earlier today I tried to add a simple secondary index to a table and since then everytime I try to access it it hangs forever: I can’t repair it, optimize it, analyze it or of course dump it. The table has about 90,000 entries and only 4 simple short fields. Nothing works: whatever I do with this table, be it through PHPmyAdmin or in command line, it just hangs until timeout. The rest of the mysql5 database works fine. What can I do to fix this mess?