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TEMPORARY MERGE tables are allowed

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unknown
2002-11-05 00:00:51 +01:00
parent 195aa6c98f
commit 3fbb702946
3 changed files with 47 additions and 1 deletions
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6
mysql-test/r/merge.result
View File

@@ -130,3 +130,9 @@ a
a b a b
1 1 1 1
1 2 1 2
a
1
2
a
1
2

19
mysql-test/t/merge.test
View File

@@ -114,3 +114,22 @@ insert into t2 values (1,1),(2,2),(0,0),(4,4),(5,5),(6,6);
flush tables; flush tables;
select * from t3 where a=1 order by b limit 2; select * from t3 where a=1 order by b limit 2;
drop table t3,t1,t2; drop table t3,t1,t2;
#
# temporary merge tables
#
drop table if exists t1, t2, t3, t4, t5, t6;
create table t1 (a int not null);
create table t2 (a int not null);
insert into t1 values (1);
insert into t2 values (2);
create temporary table t3 (a int not null) TYPE=MERGE UNION=(t1,t2);
select * from t3;
create temporary table t4 (a int not null);
create temporary table t5 (a int not null);
insert into t4 values (1);
insert into t5 values (2);
create temporary table t6 (a int not null) TYPE=MERGE UNION=(t4,t5);
select * from t6;
drop table if exists t1, t2, t3, t4, t5, t6;

23
sql/ha_myisammrg.cc
View File

@@ -264,7 +264,28 @@ int ha_myisammrg::create(const char *name, register TABLE *form,
sizeof(char*)))) sizeof(char*))))
DBUG_RETURN(1); DBUG_RETURN(1);
for (pos=table_names ; tables ; tables=tables->next) for (pos=table_names ; tables ; tables=tables->next)
*pos++= tables->real_name; {
char *table_name;
if (create_info->options & HA_LEX_CREATE_TMP_TABLE)
{
TABLE **tbl=find_temporary_table(current_thd,
tables->db, tables->real_name);
if (!tbl)
{
table_name=sql_alloc(1+
my_snprintf(buff,FN_REFLEN,"%s/%s/%s",mysql_real_data_home,
tables->db, tables->real_name));
if (!table_name)
DBUG_RETURN(1);
strcpy(table_name, buff);
}
else
table_name=(*tbl)->path;
}
else
table_name=tables->real_name;
*pos++= table_name;
}
*pos=0; *pos=0;
DBUG_RETURN(myrg_create(fn_format(buff,name,"","",2+4+16), DBUG_RETURN(myrg_create(fn_format(buff,name,"","",2+4+16),
(const char **) table_names, (my_bool) 0)); (const char **) table_names, (my_bool) 0));