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WL#1218 "Triggers"

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After review and after merge fixes.
This commit is contained in:
dlenev@brandersnatch.localdomain
2004-09-09 00:46:01 +04:00
parent 9b1bc6a4d5
commit 6dc933b730
5 changed files with 65 additions and 53 deletions
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35
sql/sql_trigger.cc
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@ -319,18 +319,18 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
if (!strncmp(triggers_file_type.str, parser->type()->str,
parser->type()->length))
{
int i;
Table_triggers_list *triggers_info=
Field **fld, **old_fld;
Table_triggers_list *triggers=
new (&table->mem_root) Table_triggers_list();
if (!triggers_info)
if (!triggers)
DBUG_RETURN(1);
if (parser->parse((gptr)triggers_info, &table->mem_root,
if (parser->parse((gptr)triggers, &table->mem_root,
triggers_file_parameters, 1))
DBUG_RETURN(1);
table->triggers= triggers_info;
table->triggers= triggers;
/*
We have to prepare array of Field objects which will represent OLD.*
@ -338,27 +338,26 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
TODO: This could be avoided if there is no ON UPDATE trigger.
*/
if (!(triggers_info->old_field=
if (!(triggers->old_field=
(Field **)alloc_root(&table->mem_root, (table->fields + 1) *
sizeof(Field*))))
DBUG_RETURN(1);
for (i= 0; i < table->fields; i++)
for (fld= table->field, old_fld= triggers->old_field; *fld;
fld++, old_fld++)
{
/*
QQ: it is supposed that it is ok to use this function for field
cloning...
*/
if (!(triggers_info->old_field[i]=
table->field[i]->new_field(&table->mem_root, table)))
if (!(*old_fld= (*fld)->new_field(&table->mem_root, table)))
DBUG_RETURN(1);
triggers_info->old_field[i]->move_field((my_ptrdiff_t)
(table->record[1] -
table->record[0]));
(*old_fld)->move_field((my_ptrdiff_t)(table->record[1] -
table->record[0]));
}
triggers_info->old_field[i]= 0;
*old_fld= 0;
List_iterator_fast<LEX_STRING> it(triggers_info->definitions_list);
List_iterator_fast<LEX_STRING> it(triggers->definitions_list);
LEX_STRING *trg_create_str, *trg_name_str;
char *trg_name_buff;
LEX *old_lex= thd->lex, lex;
@ -367,8 +366,8 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
while ((trg_create_str= it++))
{
lex_start(thd, (uchar*)trg_create_str->str, trg_create_str->length);
mysql_init_query(thd, true);
mysql_init_query(thd, (uchar*)trg_create_str->str,
trg_create_str->length, true);
lex.trg_table= table;
if (yyparse((void *)thd) || thd->is_fatal_error)
{
@ -385,7 +384,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
goto err_with_lex_cleanup;
}
triggers_info->bodies[lex.trg_chistics.event]
triggers->bodies[lex.trg_chistics.event]
[lex.trg_chistics.action_time]= lex.sphead;
lex.sphead= 0;
@ -404,7 +403,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
old_global_mem_root= my_pthread_getspecific_ptr(MEM_ROOT*, THR_MALLOC);
my_pthread_setspecific_ptr(THR_MALLOC, &table->mem_root);
if (triggers_info->names_list.push_back(trg_name_str))
if (triggers->names_list.push_back(trg_name_str))
goto err_with_lex_cleanup;
my_pthread_setspecific_ptr(THR_MALLOC, old_global_mem_root);