The method JOIN_CACHE::init may fail (return 1) if some conditions on the
used join buffer is not satisfied. For example it fails if join_buffer_size
is greater than join_buffer_space_limit. The conditions should be checked
when running the EXPLAIN command for the query. That's why the method
JOIN_CACHE::init has to be called for EXPLAIN commands as well.
Part#1.
table_cond_selectivity() should discount selectivity of table'
conditions only when ity counts that selectivity to begin with.
For non-ref-based access methods (ALL/range/index_merge/etc),
we start with sel=1.0 and hence do not need to discount any
selectivities.
- Key_value_records_iterator::get_next() should pass pointer to the key
to handler->ha_index_next_same(). Because of a typo bug, pointer-to-pointer
was passed instead in certain cases.
- When range optimizer cannot the lookup value into [VAR]CHAR(n) column,
it should produce:
= "Impossible range" for equality
= "no range" for non-equalities.
Merge from mysql-5.6:
revno: 3257
committer: Jon Olav Hauglid <jon.hauglid@oracle.com>
branch nick: mysql-trunk-bug11756966
timestamp: Thu 2011-07-14 09:32:01 +0200
message:
Bug#11756966 - 48958: STORED PROCEDURES CAN BE LEVERAGED TO BYPASS
DATABASE SECURITY
The problem was that CREATE PROCEDURE/FUCTION could be used to
check the existence of databases for which the user had no
privileges and therefore should not be allowed to see.
The reason was that existence of a given database was checked
before privileges. So trying to create a stored routine in
a non-existent database would give a different error than trying
to create a stored routine in a restricted database.
This patch fixes the problem by changing the order of the checks
for CREATE PROCEDURE/FUNCTION so that privileges are checked first.
This means that trying to create a stored routine in a
non-existent database and in a restricted database both will
give ER_DBACCESS_DENIED_ERROR error.
Test case added to grant.test.
MDEV-6099 Bad results for DATE_ADD(.., INTERVAL 2000000000000000000.0 SECOND)
MDEV-6097 Inconsistent results for CAST(int,decimal,double AS DATETIME)
MDEV-6100 No warning on CAST(9000000 AS TIME)
mysys/psi_noop.c:
Fixed wrong prototype
sql/rpl_gtid.cc:
Added #ifndef to hide not used variable
storage/connect/connect.cc:
Added volatile to avoid compiler warning in gcc 4.8.1
storage/connect/filamvct.cpp:
Added volatile to avoid compiler warning in gcc 4.8.1
storage/maria/ma_checkpoint.c:
Removed cast to avoid compiler warning
storage/myisam/mi_delete_table.c:
Added attribute to avoid compiler warning
storage/tokudb/ha_tokudb.cc:
Use LINT_INIT_STRUCT to avoid compiler warnings
storage/tokudb/hatoku_hton.cc:
Use LINT_INIT_STRUCT to avoid compiler warnings
storage/tokudb/tokudb_card.h:
Use LINT_INIT_STRUCT to avoid compiler warnings
storage/tokudb/tokudb_status.h:
Use LINT_INIT_STRUCT to avoid compiler warnings
We have to run the derived table prepare before the unique table check to mark the derived table (in this case the unique table check can turn that table to materialized one).
