• Marko Mäkelä's avatar
    Backport from 5.6: Bug#14769820 ASSERT FLEN == LEN · 507ffd4a
    Marko Mäkelä authored
    IN ALTER TABLE ... ADD UNIQUE KEY
    
    A bogus debug assertion failure occurred when reporting a duplicate
    key on a column prefix of a CHAR column.
    
    This is a regression from Bug#14729221 IN-PLACE ALTER TABLE REPORTS ''
    INSTEAD OF REAL DUPLICATE VALUE FOR PREFIX KEYS. The assertion is only
    present when UNIV_DEBUG is defined (which it is in debug builds
    starting from MySQL 5.5). It is a case of overasserting.
    
    Fix approved by Inaam Rana on IM.
    507ffd4a
handler0alter.cc 32.3 KB