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mysql_priv.h:

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Fixed bug #12154: a query returned: Column <name> cannot be null.
  The problem was due to a bug in the function setup_table_map:
  the flag maybe_null was set up incorrectly for inner tables of
  nested outer joins.
join_nested.result, join_nested.test:
  Added a test case for bug #12154.
This commit is contained in:
igor@rurik.mysql.com
2005-08-05 16:43:35 -07:00
parent 56b91a8c15
commit 73db3fdf46
3 changed files with 109 additions and 0 deletions
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6
sql/mysql_priv.h
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@ -1450,6 +1450,12 @@ inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
table->status= STATUS_NO_RECORD;
table->keys_in_use_for_query= table->s->keys_in_use;
table->maybe_null= table_list->outer_join;
TABLE_LIST *embedding= table_list->embedding;
while (!table->maybe_null && embedding)
{
table->maybe_null= embedding->outer_join;
embedding= embedding->embedding;
}
table->tablenr= tablenr;
table->map= (table_map) 1 << tablenr;
table->force_index= table_list->force_index;