oceanbase / oceanbase/seekdb

mysqltest on Windows crashes with core dump when executing UNION query in array_func2_mysql_sqlqa.unnest_basic_mysql

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dima type: bug
Dominant language
C++
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Merged PRs (30d)
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Description

Environment

  • Platform: Windows
  • Is this a temporary version provided by RD?: No
  • Reproducibility: Stable (consistently reproducible)

Description

A mysqltest case named array_func2_mysql_sqlqa.unnest_basic_mysql causes a core dump (crash) when executing a UNION query on a Windows system.

Steps to Reproduce

  1. Connect to the database using the provided connection string:
    mysql -uroot -h -P 2881
    
  2. Execute the mysqltest case: array_func2_mysql_sqlqa.unnest_basic_mysql.

Note: The original text mentions accessing a machine with credentials work/LPMFH1afkDu8A7dx... as part of the reproduction steps. Specific SQL statements for the test case were not provided in the input.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the Windows crash with mysqltest case array_func2_mysql_sqlqa.unnest_basic_mysql and its UNION query using the supplied connection command. The SQL and test files are not included here, so locate that case in the repository before tracing the crash. Done means the case completes on Windows without producing a core dump.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, mysql
Domain
databases, operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
38/100

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