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MDEV-9124 mysqldump does not dump data if table name is same as view earlier on

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While querying INFORMATION SCHEMA, check for a table's engine
only used table name, but not schema name; so, if there were different
rows with the same table name, a wrong one could be retrieved.
The result of the check affected the decision whether the contents
of the table should be dumped, and whether a DELAYED option can be used.
Fixed by adding a clause for table_schema to the query.
This commit is contained in:
Elena Stepanova 2015-11-13 03:23:22 +02:00
commit 2828c2be55
3 changed files with 198 additions and 1 deletions
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35
mysql-test/t/mysqldump.test
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@ -2516,3 +2516,38 @@ drop table t1;
--remove_file $MYSQLTEST_VARDIR/tmp/mysqldump-test.out
#select * from mysql.user;
#checksum table mysql.user;
--echo #
--echo # MDEV-9124 mysqldump does not dump data if table name is same as view earlier on
--echo #
CREATE DATABASE db1 CHARSET=utf8;
CREATE DATABASE db2 CHARSET=utf8;
USE db2;
CREATE TABLE nonunique_table_name (i1 serial) ENGINE=MEMORY;
INSERT INTO nonunique_table_name VALUES (1),(2);
CREATE TABLE nonunique_table_view_name (i2 int) ENGINE=InnoDB;
INSERT INTO nonunique_table_view_name VALUES (3),(4);
use db1;
CREATE TABLE basetable (id smallint) ENGINE=MyISAM;
CREATE TABLE nonunique_table_name (i3 smallint) ENGINE=MERGE UNION (basetable) INSERT_METHOD=LAST;
INSERT INTO nonunique_table_name VALUES (5),(6);
CREATE VIEW nonunique_table_view_name AS SELECT 1;
--echo
--echo ##################################################
--echo # --compact --databases db1 db2
--exec $MYSQL_DUMP --compact --databases db1 db2
--echo
--echo ##################################################
--echo # --compact db2
--echo
--exec $MYSQL_DUMP --compact db2
--echo
--echo ##################################################
--echo # --compact --delayed-insert --no-data-med=0 --databases db2 db1
--exec $MYSQL_DUMP --compact --delayed-insert --no-data-med=0 --databases db2 db1
--echo
DROP DATABASE db1;
DROP DATABASE db2;