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MDEV-14609 XA Transction unable to ROLLBACK TO SAVEPOINT
The function trans_rollback_to_savepoint(), unlike trans_savepoint(), did not allow xa_state=XA_ACTIVE, so an attempt to do ROLLBCK TO SAVEPOINT inside an XA transaction incorrectly returned an error "...command cannot be executed ... in the ACTIVE state...". Partially merging a MySQL patch: 7fb5c47390311d9b1b5367f97cb8fedd4102dd05 This is WL#7193 (Decouple THD and st_transactions)... The currently merged part includes these changes: - Introducing st_xid_state::check_has_uncommitted_xa() - Reusing it in both trans_rollback_to_savepoint() and trans_savepoint(), so now both allow XA_ACTIVE.
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Alexander Barkov
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Jan 15, 2018
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