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SQL: incorrect check on specific JOIN query [fixes #145]

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This commit is contained in:
kevg
2017-03-05 23:51:02 +03:00
committed by Aleksey Midenkov
parent 204b54d2d9
commit 17745222a1
3 changed files with 9 additions and 2 deletions
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5
sql/sql_base.cc
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@ -6420,8 +6420,9 @@ mark_common_columns(THD *thd, TABLE_LIST *table_ref_1, TABLE_LIST *table_ref_2,
if (!my_strcasecmp(system_charset_info, field_name_1, cur_field_name_2))
{
DBUG_PRINT ("info", ("match c1.is_common=%d", nj_col_1->is_common));
if (cur_nj_col_2->is_common ||
(found && (!using_fields || is_using_column_1)))
if ((!it_1.field() || !it_1.field()->vers_sys_field()) &&
(cur_nj_col_2->is_common ||
(found && (!using_fields || is_using_column_1))))
{
my_error(ER_NON_UNIQ_ERROR, MYF(0), field_name_1, thd->where);
goto err;