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  1. MariaDB Server
  2. MDEV-20068

History partition rotation is not done under LOCK TABLES

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      Description

      Due to partition rotation is done under lock_external() LOCK TABLES prevents table from further rotation checks. This may lead to partition overflow without any warnings.

      Reproduce:

      create or replace table t1 (x int) with system versioning partition by system_time limit 1;
      		 
      lock tables t1 write;
      		 
      insert into t1 values (0), (1), (2), (3);
      		 
      delete from t1 where x < 3;
      		 
      delete from t1;
      		 
      unlock tables;

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          Issue Links

          is part of

          Task - A task that needs to be done. MDEV-17554 Auto-create history partitions for system-versioned tables

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-20077 Warning on full history partition is delayed until next DML statement

          • Major - Major loss of function.
          • Closed

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              Assignee:
              midenok Aleksey Midenkov
              Reporter:
              midenok Aleksey Midenkov
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                Dates

                Created:
                Updated:
                Resolved:

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