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authorunknown <igor@olga.mysql.com>2007-03-22 14:48:03 -0700
committerunknown <igor@olga.mysql.com>2007-03-22 14:48:03 -0700
commit1f8bdbe4eb61b15996b5a9a25c75a905487c083f (patch)
tree2779ecf9d7bf09f045bcd6ab4f68fb315820bcac /sql/sql_base.cc
parent2fd6320136c3f44e001780e7892819a2f80c73ea (diff)
downloadmariadb-git-1f8bdbe4eb61b15996b5a9a25c75a905487c083f.tar.gz
Fixed bug #27229: crash when a set function aggregated in outer
context was used as an argument of GROUP_CONCAT. Ensured correct setting of the depended_from field in references generated for set functions aggregated in outer selects. A wrong value of this field resulted in wrong maps returned by used_tables() for these references. Made sure that a temporary table field is added for any set function aggregated in outer context when creation of a temporary table is needed to execute the inner subquery. mysql-test/r/subselect.result: Added a test case for bug #27229. mysql-test/t/subselect.test: Added a test case for bug #27229. sql/item.cc: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Ensured correct setting of the depended_from field in references generated for set functions aggregated in outer selects. sql/item_sum.cc: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Added the field aggr_sel to the objects of the class Item_sum. In any Item_sum object created for a set function this field has to contain a pointer to the select where the set function is aggregated. sql/item_sum.h: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Added the field aggr_sel to the objects of the class Item_sum. In any Item_sum object created for a set function this field has to contain a pointer to the select where the set function is aggregated. Added a method that says whether a set function is aggregated in outer context and, if so, returns the aggregating select. Removed the field nest_level_tables_count introduced by the patch for bug 24484 as aggr_sel->join->tables contains the sane number. sql/sql_base.cc: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Added the field aggr_sel to the objects of the class Item_sum. Removed changes introduced by the patch for bug 24484 as the field leaf_count of the THD class is not used anymore. sql/sql_class.h: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Added the field aggr_sel to the objects of the class Item_sum. Removed changes introduce by the patch for bug 24484 as the field leaf_count of the THD class is not used anymore. sql/sql_insert.cc: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. Added the field aggr_sel to the objects of the class Item_sum. Removed changes introduce by the patch for bug 24484 as the field leaf_count of the THD class is not used anymore. sql/sql_select.cc: Fixed bug #27229: crash when a set function aggregated in outer context was used as an argument of GROUP_CONCAT. When creating a temporary table a field is added in it for any set function aggregated in outer context.
Diffstat (limited to 'sql/sql_base.cc')
-rw-r--r--sql/sql_base.cc2
1 files changed, 0 insertions, 2 deletions
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 13279abb1c8..77bb1d9642b 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -4864,7 +4864,6 @@ bool setup_tables_and_check_access(THD *thd,
TABLE_LIST *leaves_tmp = NULL;
bool first_table= true;
- thd->leaf_count= 0;
if (setup_tables (thd, context, from_clause, tables, conds,
&leaves_tmp, select_insert))
return TRUE;
@@ -4882,7 +4881,6 @@ bool setup_tables_and_check_access(THD *thd,
return TRUE;
}
first_table= false;
- thd->leaf_count++;
}
return FALSE;
}