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mariadb/sql/mdl.cc
Sergey Vojtovich dd710e7552 MDEV-12882 - Assertion failed in MDL_context::upgrade_shared_lock 
Relaxed assertion (in MySQL it was removed).
For "LOCK TABLES t1 WRITE CONCURRENT, t1 READ" upgrade lock to weakest
existing suitable lock, which is MDL_SHARED_NO_READ_WRITE.
2017-06-26 16:11:22 +04:00

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