Sergei Golubchik b57ae8b58c MDEV-18239 ASAN use-after-poison in process_str_arg / ... / mark_unsupported_func or unexpected ER_BAD_FIELD_ERROR upon ALTER TABLE ...

renaming columns in a CHECK constraint during ALTER TABLE
taints the original TABLE and requires m_need_reopen=1.

In this case, though, renaming was redundant, so just don't do it.

2019-02-05 01:34:17 +01:00

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