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join_nested.result, join_nested.test:

Browse Source 
Added a test case for bug #4922.
sql_select.cc:
  Blocked an optimization performed by join_read_const_table when
  applied to an inner table of a nested outer join.
  It was done to fix bug #4922.
sql_yacc.yy:
  Fixed a typo bug in the rule for join_table.


sql/sql_yacc.yy:
  Fixed a typo bug in the rule for join_table.
sql/sql_select.cc:
  Blocked an optimization performed by join_read_const_table when
  applied to an inner table of a nested outer join.
  It was done to fix bug #4922.
mysql-test/t/join_nested.test:
  Added a test case for bug #4922.
mysql-test/r/join_nested.result:
  Added a test case for bug #4922.
This commit is contained in:
unknown
2004-08-06 10:22:20 -07:00
parent 8a33c2bc8f
commit 3478d656d0
4 changed files with 55 additions and 3 deletions
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3
sql/sql_select.cc
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@ -1860,7 +1860,8 @@ make_join_statistics(JOIN *join,TABLE_LIST *tables,COND *conds,
if (s->dependent & ~(found_const_table_map))
continue;
if (table->file->records <= 1L &&
!(table->file->table_flags() & HA_NOT_EXACT_COUNT))
!(table->file->table_flags() & HA_NOT_EXACT_COUNT) &&
!table->pos_in_table_list->embedding)
{ // system table
int tmp= 0;
s->type=JT_SYSTEM;