diff options
Diffstat (limited to 'mysql-test/include/query_cache_sql_prepare.inc')
| -rw-r--r-- | mysql-test/include/query_cache_sql_prepare.inc | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/mysql-test/include/query_cache_sql_prepare.inc b/mysql-test/include/query_cache_sql_prepare.inc index cf6d4c26959..1842d5412bb 100644 --- a/mysql-test/include/query_cache_sql_prepare.inc +++ b/mysql-test/include/query_cache_sql_prepare.inc @@ -275,5 +275,223 @@ drop table t1; --echo ---- disconnect connection con1 ---- disconnect con1; +# +# Bug #25843 Changing default database between PREPARE and EXECUTE of statement +# breaks binlog. +# +# There were actually two problems discovered by this bug: +# +# 1. Default (current) database is not fixed at the creation time. +# That leads to wrong output of DATABASE() function. +# +# 2. Database attributes (@@collation_database) are not fixed at the creation +# time. That leads to wrong resultset. +# +# Binlog breakage and Query Cache wrong output happened because of the first +# problem. +# + +--echo ######################################################################## +--echo # +--echo # BUG#25843: Changing default database between PREPARE and EXECUTE of +--echo # statement breaks binlog. +--echo # +--echo ######################################################################## + +############################################################################### + +--echo +--echo # +--echo # Check that default database and its attributes are fixed at the +--echo # creation time. +--echo # + +# Prepare data structures. + +--echo +--disable_warnings +DROP DATABASE IF EXISTS mysqltest1; +DROP DATABASE IF EXISTS mysqltest2; +--enable_warnings + +--echo +CREATE DATABASE mysqltest1 COLLATE utf8_unicode_ci; +CREATE DATABASE mysqltest2 COLLATE utf8_general_ci; + +--echo +CREATE TABLE mysqltest1.t1(msg VARCHAR(255)); +CREATE TABLE mysqltest2.t1(msg VARCHAR(255)); + +# - Create a prepared statement with mysqltest1 as default database; + +--echo + +use mysqltest1; + +PREPARE stmt_a_1 FROM 'INSERT INTO t1 VALUES(DATABASE())'; +PREPARE stmt_a_2 FROM 'INSERT INTO t1 VALUES(@@collation_database)'; + +# - Execute on mysqltest1. + +--echo + +EXECUTE stmt_a_1; +EXECUTE stmt_a_2; + +# - Execute on mysqltest2. + +--echo + +use mysqltest2; + +EXECUTE stmt_a_1; +EXECUTE stmt_a_2; + +# - Check the results; + +--echo +SELECT * FROM mysqltest1.t1; + +--echo +SELECT * FROM mysqltest2.t1; + +# - Drop prepared statements. + +--echo +DROP PREPARE stmt_a_1; +DROP PREPARE stmt_a_2; + +############################################################################### + +--echo +--echo # +--echo # The Query Cache test case. +--echo # + +--echo +DELETE FROM mysqltest1.t1; +DELETE FROM mysqltest2.t1; + +--echo +INSERT INTO mysqltest1.t1 VALUES('mysqltest1.t1'); +INSERT INTO mysqltest2.t1 VALUES('mysqltest2.t1'); + +--echo +use mysqltest1; +PREPARE stmt_b_1 FROM 'SELECT * FROM t1'; + +--echo +use mysqltest2; +PREPARE stmt_b_2 FROM 'SELECT * FROM t1'; + +--echo +EXECUTE stmt_b_1; + +--echo +EXECUTE stmt_b_2; + +--echo +use mysqltest1; + +--echo +EXECUTE stmt_b_1; + +--echo +EXECUTE stmt_b_2; + +--echo +DROP PREPARE stmt_b_1; +DROP PREPARE stmt_b_2; + +# Cleanup. + +--echo +use test; + +--echo +DROP DATABASE mysqltest1; +DROP DATABASE mysqltest2; + +############################################################################### + +--echo +--echo # +--echo # Check that prepared statements work properly when there is no current +--echo # database. +--echo # + +--echo +CREATE DATABASE mysqltest1 COLLATE utf8_unicode_ci; +CREATE DATABASE mysqltest2 COLLATE utf8_general_ci; + +--echo +use mysqltest1; + +--echo +PREPARE stmt_c_1 FROM 'SELECT DATABASE(), @@collation_database'; + +--echo +use mysqltest2; + +--echo +PREPARE stmt_c_2 FROM 'SELECT DATABASE(), @@collation_database'; + +--echo +DROP DATABASE mysqltest2; + +--echo +SELECT DATABASE(), @@collation_database; + +# -- Here we have: current db: NULL; stmt db: mysqltest1; +--echo +EXECUTE stmt_c_1; + +--echo +SELECT DATABASE(), @@collation_database; + +# -- Here we have: current db: NULL; stmt db: mysqltest2 (non-existent); +--echo +EXECUTE stmt_c_2; + +--echo +SELECT DATABASE(), @@collation_database; + +# -- Create prepared statement, which has no current database. + +--echo +PREPARE stmt_c_3 FROM 'SELECT DATABASE(), @@collation_database'; + +# -- Here we have: current db: NULL; stmt db: NULL; +--echo +EXECUTE stmt_c_3; + +--echo +use mysqltest1; + +# -- Here we have: current db: mysqltest1; stmt db: mysqltest2 (non-existent); +--echo +EXECUTE stmt_c_2; + +--echo +SELECT DATABASE(), @@collation_database; + +# -- Here we have: current db: mysqltest1; stmt db: NULL; +--echo +EXECUTE stmt_c_3; + +--echo +SELECT DATABASE(), @@collation_database; + +--echo +DROP DATABASE mysqltest1; + +--echo +use test; + +--echo +--echo ######################################################################## + +############################################################################### + set @@global.query_cache_size=@initial_query_cache_size; flush status; # reset Qcache status variables for next tests |