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branches/zip: ha_innobase::add_index(): Clarify the comment

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on orphaned tables when creating a primary key.
This commit is contained in:
marko 2009-11-19 12:09:11 +00:00
parent bc66ae8cc6
commit 0333817829
1 changed files with 5 additions and 4 deletions
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9
handler/handler0alter.cc
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@ -765,10 +765,11 @@ err_exit:
ut_ad(error == DB_SUCCESS);
/* Commit the data dictionary transaction in order to release
the table locks on the system tables. Unfortunately, this
means that if MySQL crashes while creating a new primary key
inside row_merge_build_indexes(), indexed_table will not be
dropped on crash recovery. Thus, it will become orphaned. */
the table locks on the system tables. This means that if
MySQL crashes while creating a new primary key inside
row_merge_build_indexes(), indexed_table will not be dropped
by trx_rollback_active(). It will have to be recovered or
dropped by the database administrator. */
trx_commit_for_mysql(trx);
row_mysql_unlock_data_dictionary(trx);