b8cf2323d6
Problem: Executing a range select using an index that includes virtual/generated columns (e.g. SELECT ... WHERE c BETWEEN ... ORDER BY d) could trigger: Assertion 'marked_for_read()' failed in Field access during execution. Cause: The keyread initialization path was populating table->read_set using mark_index_columns(), which follows the non-recursive index marking path. This only marks direct index fields and does not resolve dependencies of virtual/generated columns. As a result, when an index contained virtual columns, their dependent base columns were not included in read_set, leading to invalid access during later evaluation of virtual columns. Fix: Replace mark_index_columns() with mark_index_columns_for_read() in the keyread initialization path. This ensures the recursive read-marking logic is used, so virtual/generated column dependencies are correctly propagated into read_set before execution.
Code status:
ci.appveyor.com
MariaDB: The innovative open source database
MariaDB was designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.
MariaDB is brought to you by the MariaDB Foundation and the MariaDB Corporation. Please read the CREDITS file for details about the MariaDB Foundation, and who is developing MariaDB.
MariaDB is developed by many of the original developers of MySQL who now work for the MariaDB Corporation, the MariaDB Foundation and by many people in the community.
MySQL, which is the base of MariaDB, is a product and trademark of Oracle Corporation, Inc. For a list of developers and other contributors, see the Credits appendix. You can also run 'SHOW authors' to get a list of active contributors.
A description of the MariaDB project and a manual can be found at:
https://mariadb.com/docs/release-notes
Getting the code, building it and testing it
Refer to the following guide: https://mariadb.org/get-involved/getting-started-for-developers/get-code-build-test/ which outlines how to build the source code correctly and run the MariaDB testing framework, as well as which branch to target for your contributions.
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Bug and/or error reports regarding MariaDB should be submitted at: https://jira.mariadb.org
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