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Fix for bug#12127 triggers do not show in info_schema before they are used if set to the database(2nd version)

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use db name of table which trigger belongs to
  instead of thd->db name during trigger body parsing
This commit is contained in:
gluh@eagle.intranet.mysql.r18.ru 2005-07-27 16:17:05 +05:00
parent 41c83870a2
commit ef2c7812f3
3 changed files with 29 additions and 0 deletions
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9
mysql-test/r/information_schema.result
View File

@ -940,3 +940,12 @@ f5 19 NULL
f6 1 NULL
f7 64 NULL
drop table t1;
create table t1 (f1 integer);
create trigger tr1 after insert on t1 for each row set @test_var=42;
use information_schema;
select trigger_schema, trigger_name from triggers where
trigger_name='tr1';
trigger_schema trigger_name
test tr1
use test;
drop table t1;

11
mysql-test/t/information_schema.test
View File

@ -622,3 +622,14 @@ select column_name, NUMERIC_PRECISION, NUMERIC_SCALE
from information_schema.columns
where table_name='t1';
drop table t1;
#
# Bug #12127 triggers do not show in info_schema before they are used if set to the database
#
create table t1 (f1 integer);
create trigger tr1 after insert on t1 for each row set @test_var=42;
use information_schema;
select trigger_schema, trigger_name from triggers where
trigger_name='tr1';
use test;
drop table t1;

9
sql/sql_trigger.cc
View File

@ -520,6 +520,7 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
char path_buff[FN_REFLEN];
LEX_STRING path;
File_parser *parser;
LEX_STRING save_db;
DBUG_ENTER("Table_triggers_list::check_n_load");
@ -581,6 +582,10 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
thd->lex= &lex;
save_db.str= thd->db;
save_db.length= thd->db_length;
thd->db_length= strlen(db);
thd->db= (char *) db;
while ((trg_create_str= it++))
{
lex_start(thd, (uchar*)trg_create_str->str, trg_create_str->length);
@ -623,6 +628,8 @@ bool Table_triggers_list::check_n_load(THD *thd, const char *db,
lex_end(&lex);
}
thd->db= save_db.str;
thd->db_length= save_db.length;
thd->lex= old_lex;
DBUG_RETURN(0);
@ -631,6 +638,8 @@ err_with_lex_cleanup:
// QQ: anything else ?
lex_end(&lex);
thd->lex= old_lex;
thd->db= save_db.str;
thd->db_length= save_db.length;
DBUG_RETURN(1);
}