Marko Mäkelä 0331f1fff7 MDEV-36227 Race condition between ALTER TABLE…EXCHANGE PARTITION and SELECT ...

In commit 6e6a1b316c (MDEV-35000)
a race condition was exposed.

ha_innobase::check_if_incompatible_data(): If the statistics have
already been initialized for the table, skip the invocation of
innobase_copy_frm_flags_from_create_info() in order to avoid
unexpectedly ruining things for other threads that are concurrently
accessing the table.

dict_stats_save(): Add debug instrumentation that is necessary for
reproducing the interlocking of the failure scenario.

2025-03-07 10:52:59 +02:00

1.9 KiB

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