b9fe70325e
Problem: ======= - When a foreign key column is the base column of a virtual column that is indexed together with other virtual columns, a cascaded update (ON UPDATE/DELETE SET NULL) computed the old value of only the dependent virtual column. The other virtual key parts of the index stayed NULL in update->old_vrow. If the statement was rolled back, row_upd_store_v_row() used those NULLs, so row_upd_sec_index_entry() searched the secondary index for a record that did not exist and hit the "Record in index was not found on update" assertion. Solution: ========= dict_mem_fill_vcol_set_for_base_col(): Add every virtual key part of each index that contains the dependent virtual column to dict_foreign_t::v_cols, as dict_mem_fill_vcol_from_v_indexes() already does. row_ins_foreign_fill_virtual() then computes the old values of all of them. Based on mysql/mysql-server@c48fa1e57a
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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