MDEV-36344: UBSAN DsMrr_impl::dsmrr_init on null ptr#5016
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grooverdan wants to merge 1 commit intoMariaDB:10.11from
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MDEV-36344: UBSAN DsMrr_impl::dsmrr_init on null ptr#5016grooverdan wants to merge 1 commit intoMariaDB:10.11from
grooverdan wants to merge 1 commit intoMariaDB:10.11from
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Under SQL_SELECT::test_quick_select there isn't a mrr buffer. The TRP_RANGE.mrr_buf_size is explictly sets its size to 0 in get_best_index_intersect. Rather than hit undefined behaviour in what eventually results in full_buf being nullptr, jump the case and go directly to use_default_impl.
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Under SQL_SELECT::test_quick_select there isn't a mrr buffer. The TRP_RANGE.mrr_buf_size is explictly sets its size to 0 in get_best_index_intersect.
Rather than hit undefined behaviour in what eventually results in full_buf being nullptr, jump the case and go directly to use_default_impl.