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9053047f3d
The bug was that when long item-strings was converted to VARCHAR, type_handler::string_type_handler() didn't take into account max VARCHAR length. The resulting Aria temporary table was created with a VARCHAR field of length 1 when it should have been 65537. This caused MariaDB to send impossible records to ma_write() and Aria reported eventually the table as crashed. Fixed by updating Type_handler::string_type_handler() to not create too long VARCHAR fields. To make things extra safe, I also added checks in when writing dynamic Aria records to ensure we find the wrong record during write instead of during read. |
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