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Aleksey Midenkov 1a95c2a4b2 MDEV-36817 Server crashes in do_mark_index_columns instead of

ER_DUP_ENTRY on partitioned table

Now as c1492f3d07 (MDEV-36115) restores m_last_part table->file
points to partition p0 while the error happens in p1, so error index
does not match ib_table in innobase_get_mysql_key_number_for_index().

This case is handled by separate code block in
innobase_get_mysql_key_number_for_index() which was wrong on using
secondary index for dict_index_is_auto_gen_clust() and it was not
covered by the tests.

2025-05-23 14:46:34 +03:00