while at 1023 transactions will cause assert. Handle possible
DB_TOO_MANY_CONCURRENT_TRXS when deleting metadata in
row_drop_table_for_mysql().
rb://220, approved by Marko
Remember the acquired record locks per table handle (row_prebuilt_t)
rather than per transaction (trx_t), so that unlock_row should successfully
unlock all non-matching rows in multi-table operations.
This deficiency was found while investigating Bug #39320.
rb://94 approved by Heikki Tuuri.
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED
a true replacement of SET GLOBAL INNODB_LOCKS_UNSAFE_FOR_BINLOG=1.
This fixes an error that was introduced in r370, causing
semi-consistent read not to not unlock rows in READ COMMITTED mode.
(Bug #41671, Issue #146)
rb://67 approved by Heikki Tuuri
column values for columns that are SQL NULL. This addresses failures in
row-based replication (Bug #39648).
row_prebuilt_t: Add default_rec, for the default values of the columns in
MySQL format.
row_sel_store_mysql_rec(): Use prebuilt->default_rec instead of
padding columns.
rb://64 approved by Heikki Tuuri
comment. In the UTF-8 encoding, ASCII takes 1 byte per character, while
the "latin1" character set (normally ISO-8859-1, but in MySQL it actually
refers to the Windows Code Page 1252 a.k.a. CP1252, WinLatin1)
takes 1 to 3 bytes (1 to 2 bytes for the ISO-8859-1 subset).
Simplify the autoinc initialization code. This removes the
non-determinism related to reading the table's autoinc value for the first
time. This change has also reduced the sizeof dict_table_t by sizeof(ibool)
bytes because we don't need the dict_table_t::autoinc_inited field anymore.
Bug#39830 Table autoinc value not updated on first insert.
Bug#35498 Cannot get table test/table1 auto-inccounter value in ::info
Bug#36411 Failed to read auto-increment value from storage engine" in 5.1.24 auto-inc
rb://16
a new autoinc value. The change in behavior (bug) was introduced in 5.1.22
when we introduced the new AUTOINC locking model.
rb://31
Bug#40224 New AUTOINC changes mask reporting of deadlock/timeout errors
fix for bug# 38839 triggered this bug. When the offset and increment are > 1
we need to calculate the next value taking into consideration the two
variables. Previously we simply assumed they were 1 particularly offset was
never used. MySQL does its own calculation and that's probably why it seemed
to work in the past. We would return what we thought was the correct next
value and then MySQL would recalculate the actual value from that and return
it to the caller (e.g., handler::write_row()). Several new tests have been
added that try and catch some edge cases. The tests exposed a wrap around
error in MySQL next value calculation which was filed as bug#39828. The tests
will need to be updated once MySQL fix that bug.
One good side effect of this fix is that dict_table_t size has been
reduced by 8 bytes because we have moved the autoinc_increment field to
the row_prebuilt_t structure. See review-board for a detailed discussion.
rb://3
Fix Bug#38231 Innodb crash in lock_reset_all_on_table() on TRUNCATE + LOCK / UNLOCK
In TRUNCATE TABLE and discard tablespace: do not remove table-level S
and X locks and do not assert on such locks not being wait locks.
Leave such locks alone.
Approved by: Heikki (rb://14)
instead of parsing the query string. This fixes MySQL Bug #37885 without
us having to implement lexical analysis of SQL comments in yet another place.
thd_is_select(): A new predicate.
row_search_for_mysql(): Use thd_is_select().
Approved by Heikki.
Fix Bug#36169 create innodb compressed table with too large row size crashed
Sometimes it is possible that
row_drop_table_for_mysql(index->table_name, trx, FALSE); is invoked in
row_create_index_for_mysql() when the index object is freed so copy the
table name to a safe place beforehand and use the copy.
Approved by: Sunny
Check whether *trx->mysql_query_str is != NULL in addition to
trx->mysql_query_str. This adds more safety.
This may or may not fix Bug#35226 RBR event crashes slave.
Fix Bug#34300 Tinyblob & tinytext fields currupted after export/import and alter in 5.1
Copy the BLOB fields, that are stored internally, to a safe place
(prebuilt->blob_heap) when converting a row from InnoDB format to
MySQL format in row_sel_store_mysql_rec().
The bug was introduced in:
------------------------------------------------------------------------
r587 | osku | 2006-05-23 15:35:58 +0300 (Tue, 23 May 2006) | 3 lines
Optimize BLOB selects by using prebuilt->blob_heap directly instead of first
reading BLOB data to a temporary heap and then copying it to
prebuilt->blob_heap.
------------------------------------------------------------------------
Approved by: Heikki
new typedef to univ.i (ib_ulonglong). Added checks for overflow and removed
the assertion where it crashed previously, since the type has now changed
to unsigned, it doesn't make sense to check for < 0. Added new tests, to
check for overflow, for the different INT types supported for both
signed and unsigned.
Fixes Bug# 34335
Fix Bug#34053:
* In CREATE TABLE and DROP TABLE check whether the table in question is one
of the magic innodb_monitor tables and whether the user has enough rights
to mess with it before doing anything else.
* Implement a mysql-test testcase.
Approved by: Heikki
Merge r2160 from trunk/:
Fix Bug#18942 by dropping all foreign key constraints at the end of
DROP DATABASE. Usually, by then, there are no foreign constraints
left because all of them are dropped when the relevant tables are
dropped. This code is to ensure that any orphaned FKs are wiped too.
autoincrement columns can't contain negative values. With the fix, the
autoincrement table counter is set to 0 if the maximum value read from
the autoinc column index is negative.
Add test for the bug fix but the test is not really useful as the server
needs to be restarted half way through the test. It has been added for
reference only.
innodb-semi-consistent: New tests for InnoDB semi-consistent reads.
Unfortunately, these will not trigger Bug #31494, because there merely
occur lock wait timeouts, not deadlocks.
Bug# 30907: We don't rely on *first_value to be 0 when checking whether
get_auto_increment() has been invoked for the first time in a multi-row
INSERT. We instead use trx_t::n_autoinc_rows. Initialize trx::n_autoinc_rows
inside ha_innobase::start_stmt() too.
Bug# 30888: While adding code for the low level read of the AUTOINC value
from the index, the case for MEDIUM ints which are 3 bytes was missed
triggering an assertion.
when building a previous version of the row. This bug is triggered when
running queries via InnoDB's internal SQL parser; when InnoDB's optimizer
selects a secondary index for the plan.
dict_table_remove_from_cache(table) and thus freeing the memory
allocated for the table, copy the table name. This avoids reading
freed memory when name == table->name.
Approved by Sunny.
is one test that fails as of this commit. The updated test case should be
part of the snapshot from MySQL shortly.
Fix for bug# 27950 - Init AUTOINC from delete_row().
Fix for bug# 28781 - Use value specified by MySQL, in update_row().
Summary of structural changes:
==============================
InnoDB needs to hold a table level lock for AUTOINC allocations to overcome
the non-determinism inherent in MySQL SBR for INSERT ... SELECT. In this fix
for simple INSERT statements (including multi-value inserts), we try and avoid
acquiring the special AUTOINC table level lock unless another transaction has
already reserved the AUTOINC table level lock, in which case we fall back
to the old behavior of acquiring the AUTOINC table level lock.
The max AUTOINC value is now read directly using the low level interface
of InnoDB.
When creating an index containing a too long record, InnoDB would
dereference a NULL pointer when trying to determine the maximum row length.
innodb_check_for_record_too_big_error(): Replace the dict_table_t*
parameter with a Boolean flag. There is not always a dict_table_t object
when this function is called.
page_get_free_space_of_empty_noninline(): Move the definition and
declaration from row0mysql (!) to page0page. Make the signature
identical with page_get_free_space_of_empty().
create_clustered_index_when_no_primary(): Add the parameter "comp".
Remove unnecessary casts.
In reality, the patch breaks the handling of prefix indexes of
variable-length columns in ROW_FORMAT=COMPACT. Reverting the patch
is only a partial fix of Bug #28138.
and adapt some things.
Note that ha_innodb.cc depends on mysql_tmpfile() being declared in
<mysql/plugin.h>. Until the function is declared there, you can
uncomment the buggy definition of mysql_tmpfile in ha_innodb.cc.
Remove storage/innobase/*/Makefile.am. The whole compilation is driven by
storage/innobase/Makefile.am and storage/innobase/plug.in.
plug.in: Declare InnoDB as a dynamic plugin.
ha_innodb.h: Remove the declarations of many global variables. The variables
are no longer directly referenced outside of storage/innobase.
trx_t: Add the field trx->duplicates.
trx_create(): Initialize the fields trx->active_trans and trx->duplicates.
innobase_query_is_update(): Remove. Consult trx->duplicates instead.
row_ins_check_foreign_constraint(), row_ins_scan_sec_index_for_duplicate():
Make use of the predicates page_rec_is_infimum() and page_rec_is_supremum().
of UNDO slots in the rollback segment. This is a partial fix since the
MySQL error code requested to properly report the error condition back
to the client has not yet materialized. Currently we have #ifdef'd the
error code translation in ha_innodb.cc. This will have to be changed
as and when MySQl add the new requested code or an equivalent code
that we can then use.
Given the above, currently we will get the old behaviour, not the "fixed"
and intended behaviour.
