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23 lines
1.0 KiB
Plaintext
23 lines
1.0 KiB
Plaintext
#
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# MDEV-12882 - Assertion `mdl_ticket->m_type == MDL_SHARED_UPGRADABLE ||
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# mdl_ticket->m_type == MDL_SHARED_NO_WRITE ||
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# mdl_ticket->m_type == MDL_SHARED_NO_READ_WRITE ||
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# mdl_ticket->m_type == MDL_SHARED_READ'
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# failed in MDL_context::upgrade_shared_lock
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#
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CREATE TABLE t1(a INT) ENGINE=InnoDB;
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LOCK TABLES t1 WRITE CONCURRENT, t1 AS t2 READ;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_INTENTION_EXCLUSIVE Global read lock
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MDL_SHARED_NO_READ_WRITE Table metadata lock test t1
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UNLOCK TABLES;
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LOCK TABLES t1 AS t2 READ, t1 WRITE CONCURRENT;
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SELECT LOCK_MODE, LOCK_TYPE, TABLE_SCHEMA, TABLE_NAME FROM information_schema.metadata_lock_info;
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LOCK_MODE LOCK_TYPE TABLE_SCHEMA TABLE_NAME
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MDL_INTENTION_EXCLUSIVE Global read lock
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MDL_SHARED_WRITE Table metadata lock test t1
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MDL_SHARED_READ_ONLY Table metadata lock test t1
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UNLOCK TABLES;
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DROP TABLE t1;
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