Gleb Shchepa 95ec38c5b1 Bug #55472: Assertion failed in heap_rfirst function of hp_rfirst.c on ...

DELETE statement

Single-table delete ordered by a field that has a hash-type index
may cause an assertion failure or a crash.

An optimization added by the fix for the bug 36569 forced the
optimizer to use ORDER BY-compatible indices when applicable.

However, the existence of unsorted indices (HASH index algorithm
for some engines such as MEMORY/HEAP, NDB) was ignored.

The test_if_order_by_key function has been modified to skip
unsorted indices.

2010-07-29 01:02:43 +04:00

9.2 KiB

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