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MDEV-7150 Wrong auto increment values on INSERT .. ON DUPLICATE KEY UPDATE when the inserted columns include NULL in an auto-increment column

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when restoring auto-inc value in INSERT ... ON DUPLICATE KEY UPDATE, take into account that
1. it may be changed in the UPDATE clause (old code did that)
2. it may be changed in the INSERT clause and then cause a dup key (old code missed that)
This commit is contained in:
Sergei Golubchik
2014-12-18 00:13:16 +01:00
parent a4ff2afcb4
commit 724dbaabc0
3 changed files with 18 additions and 1 deletions
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2
sql/sql_insert.cc
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@@ -1754,7 +1754,7 @@ int write_record(THD *thd, TABLE *table,COPY_INFO *info)
table->file->adjust_next_insert_id_after_explicit_value(table->next_number_field->val_int());
}
else
else if (prev_insert_id_for_cur_row)
{
table->file->restore_auto_increment(prev_insert_id_for_cur_row);
}