"Database crash due to ha_innodb.cc:3896: ulint convert_search_mode_to_innobase":

When unknown find_flag is encountered in convert_search_mode_to_innobase()
do not call assert(0); instead queue a MySQL error using my_error() and
return the error code PAGE_CUR_UNSUPP. Change the functions that call
convert_search_mode_to_innobase() to handle that error code by "canceling"
execution and returning appropriate error code further upstream.

Approved by:	Heikki (via IM)

* Make the heading line #!/bin/sh. /bin/bash is non-standard.

Approved by:	Marko

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.

changes were made by MySQL.

	ChangeSet@1.1810.467.1  2005-08-11 19:19:20+03:00  jani@omakaista.fi

Fix error message so that it conforms to "  InnoDB: Error: ...".

DB_DEADLOCK errors are part of normal processing and excessive printing
of these error messages could be disconcerting for users. 

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.

autoinc value, and if it was rolled back because of a deadlock, the 
deadlock error (transaction rollback) was not being propagated back to MySQL.

FTS indexes.

when these Valgrind checks fail.

rec_offs_set_n_alloc(): Use UNIV_MEM_ASSERT_AND_ALLOC().

UNIV_MEM_ASSERT_AND_ALLOC(): New directive, similar to
UNIV_MEM_ASSERT_AND_FREE().

invocation of dict_table_autoinc_initialize().

ChangeSet@1.2560  2007-09-21 10:15:16+02:00  gkodinov@local

ha_innodb.cc: fixed type conversion warnings revealed by bug 30639 

ChangeSet@1.2528.115.30  2007-08-28 10:17:15-06:00  tsmith@hindu.god

Fix another compiler warning on Windows in InnoDB.

ha_innodb.cc:

Fix compiler warning: ::get_auto_increment takes a ulonglong
for nb_desired_values, but InnoDB's trx struct stores it as
a ulint (unsigned long).  Probably harmless, as a single
statement won't be asking for more than 2^32 rows.

ChangeSet@1.2528.115.25  2007-08-27 18:18:14-06:00  tsmith@hindu.god

Fix some Windows compiler warnings.

dict0mem.c: Fix compiler warning with a cast.

ha_innodb.cc: Change type to fix a compiler warning.

ChangeSet@1.2528.109.1  2007-08-06 23:16:01+02:00  kent@(none)
  Additional changes for bug#29903

Microsoft documentation about _vscprintf():

  If format is a null pointer, the invalid parameter handler is invoked,
  as described in Parameter Validation. If execution is allowed to
  continue, the functions return -1 and set errno to EINVAL.

The UNIX variant of snprintf() segfaults if format is a NULL pointer
(similar to strlen(NULL) for example), so it is better to conform to
this behavior and crash our custom Windows version instead of
returning -1. Noone would expect -1 to be returned from snprintf().

Cosmetic: Add a space after typecast.

Approved by:	Marko

log for r1850:

Implement this feature request:
http://bugs.mysql.com/30706

* Add a function that returns the number of microseconds since
  epoch - ut_time_us().

* Add (innodb|innobase|srv)_replication_delay MySQL config parameter.

* Add UT_WAIT_FOR() macro that waits for a specified condition to occur
  until a timeout elapses.

* Using all of the above, handle the replication thread specially in
  srv_conc_enter_innodb().

using auxiliary functions because there is no snprintf-variant on
Windows that behaves exactly as specified in the standard:

* Always return the number of characters that would have been printed
  if the size were unlimited (not including the final `\0').
* Always '\0'-terminate the result
* Do not touch the buffer if size=0, only return the number of characters
  that would have been printed. Can be used to estimate the size needed
  and to allocate it dynamically.

See http://www.freebsd.org/cgi/query-pr.cgi?pr=87260 for the reason why
2 ap variables are used.

Approved by:	Heikki

http://bugs.mysql.com/30706

* Add a function that returns the number of microseconds since
  epoch - ut_time_us().

* Add (innodb|innobase|srv)_replication_delay MySQL config parameter.

* Add UT_WAIT_FOR() macro that waits for a specified condition to occur
  until a timeout elapses.

* Using all of the above, handle the replication thread specially in
  srv_conc_enter_innodb().

Approved by:	Heikki

adaptive hash indexes. It is enabled by default (no change in default
behavior).

Approved by:	Marko

The function definitions were removed in r1746.

Add a missing comment, fix the length of a decoration.  Initialize the *value
out parameter in ha_innobase::innobase_get_auto_increment().

mem_heap_validate(): Compile this function also if UNIV_MEM_DEBUG is
defined.  Previously, this function was only compiled with UNIV_DEBUG.

mem_heap_free_heap_top(): Flag the memory allocated, not freed, for
Valgrind.  Otherwise, Valgrind would complain on the second call of
mem_heap_empty().

UNIV_MEM_ASSERT_RW(), UNIV_MEM_ASSERT_W(): Display additional diagnostics
for failed Valgrind checks.

retry of autoinc read semantics. We always reread the table's autoinc counter
after attempting to initialize it i.e., we want to guarantee that a read of
autoinc valus that is returned to the caller is always covered by the
AUTOINC locking mechanism.

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.

Use UNIV_MEM_ASSERT_W() instead of UNIV_MEM_ASSERT_RW().
The memory area need not be initialized.
This mistake was made in r1815.

ChangeSet@1.2536.50.1  2007-08-02 12:45:56-07:00  igor@mysql.com

Fixed bug#28404.
This patch adds cost estimation for the queries with ORDER BY / GROUP BY
and LIMIT.
If there was a ref/range access to the table whose rows were required
to be ordered in the result set the optimizer always employed this access
though a scan by a different index that was compatible with the required
order could be cheaper to produce the first L rows of the result set.
Now for such queries the optimizer makes a choice between the cheapest
ref/range accesses not compatible with the given order and index scans
compatible with it.

innodb.result: Adjusted results for test cases affected fy the fix for
bug #28404.

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.

UNIV_MEM_ASSERT_RW(): New macro, to check that the contents of a memory
area is defined.

UNIV_MEM_ASSERT_W(): New macro, to check that a memory area is writable.

UNIV_MEM_ASSERT_AND_FREE(): New macro, to check that the memory is
writable before declaring it free (unwritable).  This replaces UNIV_MEM_FREE()
in many places.

mem_init_buf(): Check that the memory is writable, and declare it undefined.

mem_erase_buf(): Check that the memory is writable, and declare it freed.

trx->n_mysql_tables_in_use only after row_lock_table_for_mysql()
returns DB_SUCCESS.  A timeout on LOCK TABLES would lead to an
inconsistent state, which would cause trx_free() to print a warning.

This was later reported as Bug #31444.

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.

database and table names.

Approved by Heikki.

ha_prototypes.h.  Enclose the definitions in ha_prototypes.h in
#ifndef UNIV_HOTBACKUP.