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authorunknown <bell@sanja.is.com.ua>2004-03-17 14:26:26 +0200
committerunknown <bell@sanja.is.com.ua>2004-03-17 14:26:26 +0200
commitf83cf4144065c12cad4007767e2e70d444fd0e05 (patch)
tree879e13469f1915539666e702fc32401e7f3a61d2 /sql/item_func.cc
parent8242d1f19dcc00a8ad393485f19a1b3d806b8100 (diff)
downloadmariadb-git-f83cf4144065c12cad4007767e2e70d444fd0e05.tar.gz
DBUG_ASSERT(fixed == 0) added to fix_fields()
sql/item.cc: layout fixed fixed bug in prepared statements with subqueries and outer references sql/item.h: neg_transformer get thd argument to call fix_fields sql/item_cmpfunc.cc: DBUG_ASSERT(fixed == 0) added to fix_fields() fixed Item_in_optimizer fixed flag neg_arguments(), neg_transformer() call fix_field() on created items to avoid bouble fix field or non-called fixfields() sql/item_cmpfunc.h: neg_transformer get thd argument to call fix_fields fixed forgoten cleanup() call of parent class sql/item_func.cc: DBUG_ASSERT(fixed == 0) and fixed flag check added to fix_fields() sql/item_func.h: DBUG_ASSERT(fixed == 0) added to fix_fields() fixed forgoten cleanup() call of parent class sql/item_row.cc: DBUG_ASSERT(fixed == 0) added to fix_fields() added forgoten 'fixed' flag set sql/item_subselect.cc: DBUG_ASSERT(fixed == 0) added to fix_fields() fixed subquery transformation sql/sql_base.cc: check of fixed flag added sql/sql_derived.cc: fixed cleunup union in derived table during EXPLAIN command processing sql/sql_select.cc: thd argument add to function to allow call fix_fields() of new created items fixed EXPLAIN double preparation check of fixed flag added eliminate_not_funcs fixed for corrcet fix_fields call of new created items sql/sql_select.h: thd argument add to function to allow call fix_fields() of new created items sql/sql_union.cc: union processing fixed tests/client_test.c: layout fixed new test of outer references fron subqueries
Diffstat (limited to 'sql/item_func.cc')
-rw-r--r--sql/item_func.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 88c2bf824c6..c8d4178e739 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -199,6 +199,7 @@ Item_func::Item_func(THD *thd, Item_func *item)
bool
Item_func::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
{
+ DBUG_ASSERT(fixed == 0);
Item **arg,**arg_end;
#ifndef EMBEDDED_LIBRARY // Avoid compiler warning
char buff[STACK_BUFF_ALLOC]; // Max argument in function
@@ -215,7 +216,7 @@ Item_func::fix_fields(THD *thd, TABLE_LIST *tables, Item **ref)
{
Item *item;
/* We can't yet set item to *arg as fix_fields may change *arg */
- if ((*arg)->fix_fields(thd, tables, arg) ||
+ if ((!(*arg)->fixed && (*arg)->fix_fields(thd, tables, arg)) ||
(*arg)->check_cols(allowed_arg_cols))
return 1; /* purecov: inspected */
item= *arg;
@@ -2172,6 +2173,7 @@ static user_var_entry *get_variable(HASH *hash, LEX_STRING &name,
bool Item_func_set_user_var::fix_fields(THD *thd, TABLE_LIST *tables,
Item **ref)
{
+ DBUG_ASSERT(fixed == 0);
/* fix_fields will call Item_func_set_user_var::fix_length_and_dec */
if (Item_func::fix_fields(thd, tables, ref) ||
!(entry= get_variable(&thd->user_vars, name, 1)))
@@ -2741,6 +2743,7 @@ void Item_func_match::init_search(bool no_order)
bool Item_func_match::fix_fields(THD *thd, TABLE_LIST *tlist, Item **ref)
{
+ DBUG_ASSERT(fixed == 0);
Item *item;
LINT_INIT(item); // Safe as arg_count is > 1