of statement breaks binlog.
There were 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.
The fix is to remember the current database at the PREPARE-time and
set it each time at EXECUTE.
mysql-test/include/query_cache_sql_prepare.inc:
The first part of the test case for BUG#25843.
mysql-test/r/query_cache_ps_no_prot.result:
Update result file.
mysql-test/r/query_cache_ps_ps_prot.result:
Update result file.
mysql-test/suite/rpl/r/rpl_ps.result:
Update result file.
mysql-test/suite/rpl/t/rpl_ps.test:
The second part of the test case for BUG#25843.
sql/mysql_priv.h:
Added mysql_opt_change_db() prototype.
sql/sp.cc:
1. Polishing;
2. sp_use_new_db() has been removed;
3. Use mysql_opt_change_db() instead of sp_use_new_db().
sql/sp.h:
sp_use_new_db() has been removed.
This function has nothing to do with a) sp and b) *new* database.
It was merely "switch the current database if needed".
sql/sp_head.cc:
1. Polishing.
2. Use mysql_opt_change_db() instead of sp_use_new_db().
sql/sql_class.cc:
Move THD::{db, db_length} into Statement.
sql/sql_class.h:
Move THD::{db, db_length} into Statement.
sql/sql_db.cc:
Introduce mysql_opt_change_db() as a replacement (and inspired by)
sp_use_new_db().
sql/sql_prepare.cc:
1. Remember the current database in Prepared_statement::prepare().
2. Switch/restore the current database in Prepared_statement::execute().
parameter don't use query cache"
Thanks to the fix of BUG#26842, statements prepared with SQL PREPARE
and having parameters can now use the query cache.
mysql-test/include/query_cache_sql_prepare.inc:
now, statements prepared with SQL PREPARE use the query cache even
when they have parameters.
mysql-test/r/query_cache_ps_no_prot.result:
updated result: we see caching happened.
mysql-test/r/query_cache_ps_ps_prot.result:
updated result: we see caching happened
sql/sql_prepare.cc:
query expansion does not insert user variables' references anymore,
it now inserts parameters' values (BUG#26842's fix did this);
so we can use the query cache.
- Create "--ps-protocol" and no "--<whatever>-protocol" variants of the former tests
t/grant_cache.test and t/query_cache_sql_prepare.test.
- Some additional subtest and fixes of bugs
- Minor improvements
mysql-test/include/grant_cache.inc:
- Rename mysql-test/t/grant_cache.test to include/grant_cache.inc
- Toplevel scripts running variants of this test are
t/grant_cache_ps_prot.test (runs only with "--ps-protocol")
t/grant_cache_no_prot.test (skipped if any protocol is assigned)
- Modifications to include/grant_cache.inc:
- Minor improvements like replace --error <number> by --error <name>
- enable that some subtests are run with "--ps-protocol"
mysql-test/include/query_cache_sql_prepare.inc:
- Rename t/query_cache_sql_prepare.test to include/query_cache_sql_prepare.inc
- Toplevel scripts running variants of this test are
query_cache_ps_ps_prot.test (skipped if other protocol than --ps-protocol is used.)
query_cache_ps_no_prot.test (skipped if --<whatever>-protocol is used)
- Modifications to include/query_cache_sql_prepare.inc:
- Minor improvements like add drop table
- Add tests checking that
- another connection gets the same amount of QC hits
- statements running via ps-protocol do not hit QC results of preceding sql EXECUTEs
mysql-test/r/grant_cache_no_prot.result:
Updated result
mysql-test/r/query_cache_ps_no_prot.result:
Updated result
tests/mysql_client_test.c:
- correct wrong sized "for" loop
- add some missing tests of query cache hit numbers
mysql-test/r/grant_cache_ps_prot.result:
New BitKeeper file ``mysql-test/r/grant_cache_ps_prot.result''
mysql-test/r/query_cache_ps_ps_prot.result:
New BitKeeper file ``mysql-test/r/query_cache_ps_ps_prot.result''
mysql-test/t/grant_cache_no_prot.test:
Variant of the test grant_cache to be run without any "--<whatever>-protocol"
mysql-test/t/grant_cache_ps_prot.test:
Variant of the test grant_cache to be run with "--ps-protocol" only
mysql-test/t/query_cache_ps_no_prot.test:
Variant of the test query_cache_sql_prepare to be run without any "--<whatever>-protocol"
mysql-test/t/query_cache_ps_ps_prot.test:
Variant of the test query_cache_sql_prepare to be run with "--ps-protocol" only
