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    Bug#27029 alter table ... enable keys crashes mysqld on large table · c3e4b61c
    unknown authored
    - When creating an index for the sort, the number of rows plus 1 is used 
    to allocate a buffer.  In this test case, the number of rows 4294967295 
    is the max value of an unsigned integer, so when 1 was added to it, a 
    buffer of size 0 was allocated causing the crash.
    - Create new test suite for this bug's test suite as per QA.
    
    
    myisam/sort.c:
      Bug#27029 alter table ... enable keys crashes mysqld on large table
      - Check to make sure the value of records is < UINT_MAX32 to avoid a 
      false positive on the remaining condition.
    mysql-test/suite/large_tests/README.TXT:
      Bug#27029 alter table ... enable keys crashes mysqld on large table
      - New testsuite for large tests.
      - Added mtr hint for potential testers.
    mysql-test/suite/large_tests/r/alter_table.result:
      Bug#27029 alter table ... enable keys crashes mysqld on large table
      - New testsuite for large tests.
      - Added results for bug.
    mysql-test/suite/large_tests/t/alter_table.test:
      Bug#27029 alter table ... enable keys crashes mysqld on large table
      - New testsuite for large tests.
      - Added test for bug.
    c3e4b61c
alter_table.result 1.22 KB