unknown bccbd5c493 Bug#28587 SELECT is blocked by INSERT waiting on read lock, even with low_priority_updates ...

The problem is that a SELECT on one thread is blocked by INSERT ... ON
DUPLICATE KEY UPDATE on another thread even when low_priority_updates is
activated.

The solution is to possibly downgrade the lock type to the setting of
low_priority_updates if the INSERT cannot be concurrent.


sql/sql_insert.cc:
  Possibly downgrade lock type to the the setting of low_priority_updates if
  if the INSERT cannot be concurrent.

2007-08-30 16:11:53 -03:00

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