I'm doing upgrade from 3.8.5 to 4.0.7. On step 12 I get Database error:
The size for post table is 1.1GB and storage engine is MyISAM.
Code:
Database error in vBulletin 3.8.5: Invalid SQL: ALTER TABLE post ADD INDEX threadid_visible_dateline (threadid,visible,dateline,userid,postid); MySQL Error : 137 when fixing table Error Number : -1
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