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MDEV-15950: LOAD DATA INTO compex_view crashed

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For multi-table views with LOAD, updates are not allowed, so
we should just throw an error.
This commit is contained in:
Varun Gupta
2019-01-30 19:35:40 +05:30
parent 08c05b5f34
commit 6092093cb9
3 changed files with 62 additions and 0 deletions
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26
mysql-test/r/loaddata.result
View File

@ -574,3 +574,29 @@ a b
6 6
DROP VIEW IF EXISTS v2,t2;
DROP TABLE IF EXISTS t1;
#
# MDEV-15950: LOAD DATA INTO compex_view crashed
#
create table t1 (a int, b int);
create table t0 (x int, y int);
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1,t0;
CREATE VIEW v2 AS SELECT * FROM v1;
LOAD DATA INFILE '../../std_data/loaddata7.dat' INTO TABLE v1
FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n';
ERROR HY000: Incorrect usage of Multi-table VIEW and LOAD
LOAD DATA INFILE '../../std_data/loaddata7.dat' INTO TABLE v2
FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n';
ERROR HY000: Incorrect usage of Multi-table VIEW and LOAD
DROP VIEW IF EXISTS v2,v1;
DROP TABLE IF EXISTS t1,t0;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), UNIQUE(b));
INSERT INTO t1 VALUES (1,1);
CREATE TABLE t2 (c INT);
CREATE VIEW v AS SELECT t1.* FROM t1 JOIN t2;
SELECT a, b FROM t1 INTO OUTFILE '15645.data';
LOAD DATA INFILE '15645.data' IGNORE INTO TABLE v (a,b);
ERROR HY000: Incorrect usage of Multi-table VIEW and LOAD
LOAD DATA INFILE '15645.data' REPLACE INTO TABLE v (a,b);
ERROR HY000: Incorrect usage of Multi-table VIEW and LOAD
drop table t1,t2;
drop view v;

31
mysql-test/t/loaddata.test
View File

@ -690,3 +690,34 @@ select * from v2;
select * from t2;
DROP VIEW IF EXISTS v2,t2;
DROP TABLE IF EXISTS t1;
--echo #
--echo # MDEV-15950: LOAD DATA INTO compex_view crashed
--echo #
create table t1 (a int, b int);
create table t0 (x int, y int);
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1,t0;
CREATE VIEW v2 AS SELECT * FROM v1;
--error ER_WRONG_USAGE
LOAD DATA INFILE '../../std_data/loaddata7.dat' INTO TABLE v1
FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n';
--error ER_WRONG_USAGE
LOAD DATA INFILE '../../std_data/loaddata7.dat' INTO TABLE v2
FIELDS TERMINATED BY ',' LINES TERMINATED BY '\r\n';
DROP VIEW IF EXISTS v2,v1;
DROP TABLE IF EXISTS t1,t0;
CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a), UNIQUE(b));
INSERT INTO t1 VALUES (1,1);
CREATE TABLE t2 (c INT);
CREATE VIEW v AS SELECT t1.* FROM t1 JOIN t2;
SELECT a, b FROM t1 INTO OUTFILE '15645.data';
--error ER_WRONG_USAGE
LOAD DATA INFILE '15645.data' IGNORE INTO TABLE v (a,b);
--error ER_WRONG_USAGE
LOAD DATA INFILE '15645.data' REPLACE INTO TABLE v (a,b);
drop table t1,t2;
drop view v;

5
sql/sql_load.cc
View File

@ -251,6 +251,11 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
my_error(ER_NON_UPDATABLE_TABLE, MYF(0), table_list->alias, "LOAD");
DBUG_RETURN(TRUE);
}
if (table_list->is_multitable())
{
my_error(ER_WRONG_USAGE, MYF(0), "Multi-table VIEW", "LOAD");
DBUG_RETURN(TRUE);
}
if (table_list->prepare_where(thd, 0, TRUE) ||
table_list->prepare_check_option(thd))
{